Thursdays forecast – Sunshine and showers with brisk winds 

Good evening Western Isles on this Wednesday evening we are seeing sunshine and cloud with scattered showers. Winds gusting 40 mph. Today’s high of 16.8C 

South Uist picked up another 7 mm of rainfall today taking it up to 69 mm of rainfall for the month. This graphic below from Roost Weather shows South Uist rang is roughly about average for this stage of the month for rainfall so far. With 13 mm of the total falling on the 20th of August.

Thursday

For us on Thursday the low pressure system that has given us an unsettled last couple of days clears away Northwards as shown on the Met Office chart below with high pressure slowly building in behind which will give us a more settled day on Friday

Overnight – A mixture of clear skies and cloud with a few scattered showers. Winds of 10 to 30 mph. 

Morning and afternoon – Sunshine and cloud with some scattered showers heavy at times. Some showers merging into some longer spells of rain into the late afternoon. Winds of 10 to 30 mph. 

Evening – Sunshine and cloud with scattered showers again some longer spells of rain. Clear skies and cloud after sunset. Winds of 10 to 25 mph. 

Winds will be from the South and South West. Temps of 10C to 16C

Sunrise and Sunset

Stornoway – 06:09 and 20:45

South Uist – 06:15 and 20:47 

Outlook 

Friday – Sunshine and cloud. Some decent and prolonged sunshine. Light winds. Cool start becoming warmer later. Winds under 20 mph and temps of 7C to 16C

Saturday and Sunday – Sunshine and cloud with light winds. More cloud on Sunday. Winds under 20 mph. Temps of 10C to 17C

Some uncertainty exists as to the exact placement of a developing low on Saturday which could bring us some rain for a time

Monday – Overcast with rain and showers. Light winds. Temps of 12C to 16C

Have a great evening 

Wednesday 24th August Weather forecast for the Western Isles.

Good evening Western isles on this Tuesday evening we are seeing clear skies and cloud. Winds under 20 mph and today’s high of 17.7C

Wednesday

We are going to see a real mixed bag on Wednesday with low pressure sitting out in the Atlantic. A trough moving across the islands will bring heavy rain for a time. We will also have some strong winds mid afternoon but also plenty of sunshine. Below is the surface pressure chart from the Met Office below

Overnight – Plenty of cloud with some rain this will be heavy at times particularly across Lewis. Winds under 20 mph.

Morning – Sunshine and cloud with some scattered showers. Some decent and prolonged sunshine. Winds of 10 to 30 mph.

Afernoon –

During the afternoon and evening we are going to see spell of strong winds across the islands. Gusts reaching 40 to 50 mph as highlighted by the UK Met Office chart below from the Weatheroutlook

We are going to see a mixutre of sunshine and cloud. Some decent and prolonged sunshine with showers particaully into the evening and will be heavy at times. Winds will also increase winds of 20 to 40 mph with some gusts reaching 50 mph.

Winds overnight will be from the South East shifting South and South West into the morning. Temps of 9C to 17C

Sunrise and Sunset

Stornoway – 06:07 and 20:48

South Uist – 06:13 and 20:49

Outlook

Thursday and Friday – Sunshine and cloud with scattered showers. Winds of 10 to 30 mph. Temps of 11C to 18c

Saturday – Plenty of cloud across the Western Isles with spells of rain moving across the Western Isles. Some sunshine at times. Winds of 10 to 30 mph.

Sunday – Spells of rain heavy at times. Plenty of cloud. Some sunshine at times. Winds of 10 to 30 mph. Temps of 11C to 16C

Outlook – Looking ahead to next week and there is still plenty of uncertainty with the GFS going for more settled conditions and the EC still going for areas of low pressure movin past the islands. Still hoping for some more settled autumn weather.

Have a great evening

Tuesday 23rd August Weather forecast for the Western Isles.

Good evening Western Isles on this Monday evening we are seeing plenty of cloud with some rain and drizzle. Some breaks in the cloud. Some low cloud mainly across Uist and Barra. Winds under 20 mph and today’s high of 16.3C

A contrast over the weekend with rainfall totals between South Uist and Stornoway with just 0.6mm being recorded in Stornoway and 14.6 mm at South Uist. As shown below in the roost weather image.

Tuesday

Low pressure and associated weather fronts will dominate our weather across the Western Isles on Tuesday. The low pressure is not very deep but it is very broad. This is highlighted by the Met OfficeSurface pressure chart below.

Overnight – Spells of rain and showers heavy at times. Plenty of cloud with some mist and fog. Winds of 10 to 30 mph.

Morning – Further rain and showers heavy at times but gradually becoming more scattered. Plenty of cloud with some sunny spells. Some lingering mist and fog. Winds of 10 to 30 mph.

Afternoon and evening – A few scattered showers but becoming drier. Increasing amounts of sunshine during the late afternoon and evening. Some decent and prolonged sunshine at times. Winds under 20 mph.

Winds will be from the South and South East and shifting South West later. Temps of 10C to 18C

Sunrise and Sunset

Stornoway – 06:04 and 20:51

South Uist – 06:11 and 20:52

Outlook

The rest of this week is going to remain unsettled with areas of low pressures moving in off the Atlantic.

Wednesday – Sunshine and showers with brisk winds. Possibly reaching gale forecast at times. Winds of 20 to 45 mph. Temps of 11C to 17C

Thursday – Further spells of rain and showers. Sunshine and cloud. Winds of 10 to 30 mph. Temps of 11C to 16C

Friday – Looks like being the best day of the week with sunshine and cloud. Decent and prolonged a times. Winds under 20 mph. Temps of 8C to 15C

Saturday

Plenty of uncertainty yet but an area of low pressure could bring spells of rain and blustery winds. But will depend on the placement of the area of low pressure and how unsettled it will be.

A day of rain and showers is likely with some sunny spells. Winds of 20 to 30 mph. Temps of 10C to 17C

Have a great evening.

Sunday 21st August Weather forecast for the Western Isles.

Good evening Western Isles just a heads up that there will be no evening forecast on Sunday or Monday morning but we will be back to normal on Monday evening.

On this Sunday evening, we are seeing frequent rain and showers with some sunshine. These showers are heavy in places.

Today a small area of low pressure brought winds of 56 mph to South Uist range and 46 mph at Stornoway and this is highlighted on the image below from Roost Weather

It looked impressive on Radar as well. As shown on radar below from Netweather.tv. It was a fast developing system. If it had been quicker in deepening and slower moving then it could have caused us a few issues. The South Uist Met Office site also recorded 10.6 mm of rainfall from this system.

Sunday

For Sunday the weather system that brought the wind and rain for Saturday clears away to sunshine and cloud and more settled day as shown on the surface pressure chart below

Overnight – Clear skies and cloud with some scattered showers. A mixture of clear skies and cloud. Winds of 10 to 30 mph.

Morning – Sunshine and showers. These heavy at times but becoming more scattered as the morning goes on. Some decent and prolonged sunshine where the cloud breaks. Winds of 10 to 25 mph.

Afternoon and evening – Some decent and prolonged sunshine with variable amounts of cloud. Still a few showers but these becoming less frequent and more scattered. Winds under 20 mph

Winds will be from the West and South West. Temps of 10C to 16C

Sunrise and Sunset

Stornoway – 06:00 and 20:56

South Uist – 06:07 and 20:57

Outlook

Things that won’t surprise you but next week is looking like another unsettled weather week across our islands with low pressure near to the Western Isles all week.

Monday – Overcast with spells of rain and drizzle. Winds of 20 to 30 mph. Temps of 10C to 14C

Tuesday – Sunshine and showers with brisk winds. Showers heavy at times. Winds of 20 to 40 mph strongest for Uist and Barra. Temps of 11C to 18C

Wednesday and Thursday – Sunshine and showers with brisk winds. Scattered showers. Winds gusting 20 to 40 mph at times. Temps of 10C to 16C

Have a great evening

Saturday 20th August Weather forecast for the Western Isles.

Good evening Western Isles. Sorry for the later update this evening. A number of technical issues with my Word press account tonight and laptop problems. Hopefully resolved now.

On this Friday evening, we are seeing plenty of cloud. With spells of rain and drizzle. Some clear skies. Winds gusting 30 mph and today’s high of 16.3C

Saturday

So as been talking about most of the week we are going to see some blustery winds overnight and some heavy rain. The Met Office tweeted about blustery winds overnight. I struggle with the term strong winds for wind speeds less than 50 mph but it is classed as gale force.

We are also going to see some heavy rain with up to 20 mm of rainfall falling in some locations. This is all moving across the island courtesy of a developing area of low pressure. Below is a rainfall accumulation map from WX chart with rainfall to midnight on Sunday

Overnight – We will see heavy and slow moving rain pushing across the islands. This will be persistent in places. Overcast with winds gusting 20 to 40 mph with some gusts reaching 50 mph during the early hours of Saturday morning. We have a slight chance of some of these showers being thundery in nature.

Morning and afternoon – Frequent heavy rain and showers which will at times merge into some longer spells of rain. Some of the showers will be thundery at times. In between some decent spells of sunshine. Winds of 20 to 40 mph.

Evening – Little change with further frequent rain and showers heavy at times. Again some longer spells of rain. In the breaks in the cloud some sunshine. Winds of 10 to 30 mph gusting 40 mph.

Sunrise and Sunset

Stornoway – 05:58 and 20:59

South Uist – 06:05 and 21:00

Outlook

Sunday – Sunshine and cloud with winds easing. Mainly dry. Winds of 10 to 30 mph and temps of 11C to 16C

Low pressure clears away and high pressure builds in on Sunday.

Monday – Overcast with spells of rain and drizzle. Winds increasing for Uist and Barra during the evening. Temps of 10C to 16C

Tuesday and Wednesday – Sunshine and showers heavy at times with brisk winds gusting 30 mph. Temps of 11C to 16C

Have a great evening.

Friday 19th August Weather forecast for the Western Isles.

Good evening Western Isles on this Thursday evening we are seeing a mixture of clear skies and showers. Winds gusting 30 to 40 mph and today’s high of 16.6C

After the rain and drizzle cleared this morning we got some decent and at times prolonged sunshine. Showers have started to push in this evening. Visibility was poor at times one of the main features of this summer.

Friday

Low pressure is dominating our weather across the islands at the moment. Low pressure by midday on Friday will be close by to Iceland with weather fronts across the UK. This is a broad area of low pressure so the isobars are not tightly together so winds aren’t too strong. Below is the Met Office chart for Friday

Overnight – Clear skies and cloud with some rain and showers these will be heavy at times. Winds of 20 to 40 mph.

Morning and afternoon – Frequent showers heavy at times. Some of these merging into some longer spells of rain at times. In between the showers in the breaks in the cloud we will see some decent and prolonged sunshine. Winds of 20 to 40 mph.

Evening – Again further showers heavy at times. Some sunshine and then clear skies after sunset. Winds of 20 to 40 mph.

Winds will be from the South West. Temps of 11C to 17C

Sunrise and Sunset

Stornoway – 05:56 and 21:01

South Uist – 06:03 and 21:02

Outlook

Saturday – A shallow area of low pressure will bring heavy rain overnight Saturday into Sunday with some parts of Lewis and Harris seeing up to 10 to 15 mm in rain in a couple of hours. Below is the WX chart for 6am Saturday morning.

So we will see heavy overnight rain across the islands during Saturday morning. Then once the rain clears away again it will be sunshine and showers. Winds of 20 to 40 mph. Temps of 11C to 15C

Sunday – Sunshine and cloud with winds easing under 20 mph. Temps of 10C to 16C

Monday – Overcast with brisk winds and rain and drizzle at times. Winds of 10 to 30 mph. Temps of 10C to 14C

Tuesday – A fine and dry day with sunshine and cloud. Winds of 10 to 30 mph. Temps of 11C to 16C

Have a great evening

Thursday 18th August Weather forecast for the Western Isles.

Good evening Western Isles on this Wednesday evening we are seeing plenty of cloud with some rain and drizzle. Some clear spells. Winds gusting 25 mph and today’s high of 13.8C ( Please note the South Uist site was not working correctly for a few hours today so today’s high could have been different )

It was a cold start to the day for Lewis and Harris with 4.7C being recorded at Stornoway Airport. Stornoway was in the bottom 10 of cold temperature for overnight Tuesday into Wednesday. The image below is from Roost Weather showing the overnight minimums.

The temperature jumped from 5.2C to 11C between 6 and 7 am this morning. Again the image below comes from Roost Weather

Thursday

Low pressure dominates our weather on Thursday across the islands as highlight on the Met Office surface pressure chart.

Overnight – Clear skies and cloud. But cloud increases as the night goes on with some rai nand drizzle along with mist and low cloud. Winds of 20 to 40 mph.

Morning and afternoon – Some lingering rain and drizzle. Increasing amounts of sunshine. Turning showery for late morning and afternoon turning heavy at times with some decent and prolonged sunshine in between the showers. Winds of 20 to 40 mph.

Evening – Showers will move across the islands which will be heavy at times. Some spells of sunshine in between. Winds of 20 to 40 mph.

Winds will be from the South West and temps of 11C of 18C

Sunrise and Sunset

Stornoway – 05:54 and 21:04

South Uist – 06:01 and 21:05

Outlook

Low pressure will drive our weather across the islands over the weekend. We will also see brisk winds.

Friday – We are going to see spells of rain and showers heavy at times. Some decent sunny spells in between. Winds of 20 to 40 mph from the South West. Temps of 11C to 17C

Saturday – Overnight Friday into Saturday we are going to see some heavy rain moving across the Western Isles we could see up to 15 mm in some spots. Winds gusting 40 mph. Into Saturday a day of sunshine and showers along with brisk winds. Winds of 20 to 40 mph from the South West. Temps of 11C to 16C

Below is the Arpege model chart showing the heavy rain across the islands early Saturday morning. The chart comes form WX charts.

Sunday – A fine and dry day with sunshine and cloud and lighter winds. Winds under 20 mph from the South West. Temps of 11C to 15C

Monday – Sunshine and cloud with rain and showers along with winds of 10 to 30 mph. Temps of 11C to 16C

Have a great evening

Wednesday 17th August Weather forecast for the Western Isles.

Good evening Western Isles on this Tuesday evening we are seeing plenty of cloud with some clear spells. Winds gusting 10 to 25 mph and today’s high of 14.8C

It was a cooler day across the islands today. Drier and brighter once the morning rain cleared away allowing for some sunshine.

Wednesday

High pressure is firmly in control on Wednesday which will give us a mostly settled day but there is a broad area of low pressure awaiting out West which will become a dominant feature of our end of the week weather.

Overnight – Clear skies and cloud. Under these clear skies, we will see temperatures drop into single figures. Winds under 20 mph.

The Met Office model, as shown in the image below, indicates temperatures could get as low as 5C.

Image credit the Weather Outlook.

Morning – A mixture of sunshine and cloud some decent and prolonged sunshine with variable amounts of cloud. Winds under 20 mph.

Afternoon and evening – The cloud is expected to build back in with some sunny spells. Occasional scattered showers and some rain but for most staying largely dry. Winds of 10 to 30 mph.

Sunrise and Sunset

Stornoway – 05:51 and 21:07

South Uist – 05:59 and 21:05

Outlook

Thursday and Friday – Sunshine and showers with brisk wind. The showers heavy at times. In between some decent spells of sunshine. Winds of 20 to 40 mph.

Saturday

Has got my attention. The computer models have been hinting at a low pressure system forming close to the Westen Isles overnight Friday into Saturday. There is a lot of uncertainty as yet . The consistent part of is that we are seeing plenty of rain being shown by the models on each run but not so much the area of low pressure. The GFS had the low pressure on the 18z model run last night but has backed off on it since. The EC is showing the area of low pressure this evening and as is the Met Office model the UKV.

If what is being shown by the EC we could see some heavy rainfall in a short period of time with winds gusting 40 to 50 mph. The image below from WX charts shows the low pressure below. Remember this is just one model run. But I will be keeping an eye on it.

So at the moment, I am expecting to see overnight heavy rain and persistent rain with sunshine and showers during the rest of the day. Winds of 20 to 40 mph and temps of 11C to 15C

Sunday – A mostly fine and dry day with a few scattered showers plenty of cloud. Winds under 20 mph. Temps of 11C to 16C

Have a great evening

Tuesday 16th August Weather forecast for the Western Isles.

Good evening Western Isles on this Monday evening we are seeing a mixture of clear skies and cloud. Winds under 20 mph and today’s high of 15.2C

Mist and low cloud once again caused issues with ferry delays and cancellations today along with Plane delays and cancellations. This is one of the worst summers I can remember for Mist and Fog we always get spells of it during the summer months but I don’t remember it being this frequent.

Tuesday

For Tuesday high pressure starts to build in behind the cold front that is slowly moving across from the West Coast of Scotland. As shown by the Met Office chart below.

Overnight – Some rain and drizzle with some mist and low cloud. Increasing amounts of clear skies. Winds of 10 to 30 mph.

Morning and afternoon – Some lingering mist and fog should clear away. Increasing sunshine with some scattered heavy showers. Some decent and prolonged afternoon sunshine. Winds of 10 to 30 mph.

Evening – Most of the showers will clear away a few well scattered showers in places. For most a fine and dry end to the day with variable amounts of cloud and decent and prolonged sunshine. Winds of 10 to

30 mph.

Winds will be from the North and Temps of 8C to 14C

Sunrise and Sunset

Stornoway – 05:49 and 21:09

South Uist – 05:57 and 21:10

Outlook

The mid to end of this week and the weather is going to turn more like Autumn and when I say that stronger winds and spells of rain with areas of low pressure moving across the islands as opposed to settled misty and overcast conditions.

Wednesday – Sunshine and cloud with light winds until the evening which will gust 30 mph later. Winds of 10 to 30 mph and temps of 12C to 15C

Thursday

You can see the low pressure system that will bring more unsettled weather on Thursday across the islands. This image comes from WX Charts and the EC Model 12z run.

will be a day of sunshine and showers and brisk winds. Winds of 10 to 30 mph with some gusts reaching 40 mph. Temps of 12C to 18C

Friday – Again sunshine and showers these will be heavy at times. Some decent spells of sunshine. Winds of 20 to 40 mph. Temps of 10C to 15C

Saturday and Sunday – More of the same with sunshine and showers along with brisk winds. Winds of 20 to 40 mph from the South and South West. Temps of 10C to 16C

Have a great evening

Monday 15th August Weather forecast for the Western Isles.

Good evening Western Isles on this Sunday evening we are seeing sunshine and cloud with some mist and low cloud. Winds under 20 mph and today’s high of 16.6C

Thunderstorms and heavy rain have impacted large parts of Scotland today. The Western Isles missed out on the storms as they went East of us. It has caused flooding in Inverness. Here is a map below showing the track of the storms from Netweather

Monday

We are once again outside the Met Office weather warnings for Thunderstorms on Monday which will be over Southern of the UK. Weather fronts still sit close to the Western Isles as highlighted by this Met Office pressure chart.

Overnight – An overcast night with some clear skies. Mist and fog patches again. Some light rain and drizzle. Winds under 20 mph.

Morning and afternoon – Staying mostly cloudy with some light rain and drizzle with a few scattered showers which could be thyndery at times.. The cloud breaking at times with occasional sunshine. Lingering and slow to clear mist and fog. Winds under 20 mph.

Evening – Overcast mainly dry with some sunshine. A few scattered showers. Some mist and low cloud. Winds of 10 to 30 mph.

Winds will be from he North and Temps of 11C to 16C

Sunrise and Sunset

Stornoway – 05:47 and 21:12

South Uist – 05:55 and 21:12

Outlook

Tuesday

We are going to see a cooler airmass moving across the Western Isles. You can this from the comparison image below showing today Sunday and Tuesday. This is from the WX charts website. Please note this isn’t low level temperature but at 1.5km above sea level.

So on Tuesday, we will see overcast conditions with spells of rain and showers. It will feel cooler and winds of 10 to 30 mph. Temps of 10C to 14C

Wednesday and Thursday – Sunshine and cloud with scattered occasionally heavy showers. Some decent spells of sunshine. Winds of 10 to 30 mph with some gusts reaching 40 mph. Temps of 9C to 15C

Friday and Saturday – Low pressure will drive our weather. We will see spells of rain and showers with brisk winds gusting 20 to 40 mph. Temps of 10C to 15C

Sunday – Low pressure clears away. Plenty of cloud with some rain and drizzle. Winds under 20 mph.

Have a great evening.

Sunday 14th August Weather forecast for the Western Isles.

Good evening Western Isles on this Saturday evening we are seeing a mixture of sunshine and cloud with light winds. Some mist and fog. When the mist and fog cleared today we witnessed some of the highest temperatures of the year. South Uist range recorded 19.5C at the Met Office both Barra and Benbecula Airports recorded 20C temps.

Image from Starlings Roost Weather showing the 19.5C at South Uist range Met Office site.

Sunday

So the Met Office yellow weather warning for Thundetorms for Scotland for Sunday has been updated. The Western Isles remains outside the warning. But worth keeping in mind if you are travelling to and from the mainland that there could be some severe storms. Below is the Met Office warning

Overnight – We are going to see an overcast night with some patchy rain and drizzle but for most, it should be dry. Some mist and fog patches. Winds under 20 mph.

Morning, afternoon and evening – Overcast with some sunshine at times but for most staying cloudy. Some mist and fog with occasional light rain and drizzle. The odd shower cannot be ruled out and again this could be thundery but the risk is low. Winds under 20 mph.

Winds will be from the North and North East. Temps of 12C to 17C

Sunrise and Sunset

Stornoway – 05:45 and 21:14

South Uist – 05:52 and 21:15

Outlook

Into the new week and there really isn’t much change and the weather will turn more mobile towards the end of the week with more rain and winds. Weather fronts still linger on Monday as shown by the Met Office surface pressure chart.

Monday – Overcast with some rain and drizzle. Mist and low cloud in patches. Winds under 20 mph. Temps of 12C to 15C

Tuesday – We are going to see overcast conditions with some rain and drizzle along with brisk winds of 20 to 40 mph. Temps of 10C to 15C

Wednesday – Winds slowly ease with plenty of cloud clearing to sunshine later. Temps of 10C to 13C

Thursday – Overcast with spells of rain heavy at times. Winds of 10 to 30 mph. Temps of 12C to 16C

Have a great evening,

Saturday 13th August Weather forecast for the Western Isles.

Good evening Western Isles on this Friday evening we are seeing plenty of cloud with some rain and drizzle. Sunshine in places with some mist and fog. Winds under 20 mph and today’s high 16.6C

Below is the surface pressure chart for Saturday which one again showers the warm front close to the islands. Once again bringing the risk of mist and fog at times with drizzle.

Overnight – A cloud dominating night with spells of light rain and drizzle. Some clear spells at times but mist and fog patches will form again widely. Winds under 20 mph.

Morning and afternoon – For many staying largely dry but there will be some light rain and drizzle. There is a chance of a few heavier showers skirting the West coast of Lewis but these more than likely stay offshore. Sunshine at times but mainly hazy. Mist and fog patches again could prove stubborn to clear. Winds under 20 mph.

Evening – Again overcast with spells of light rain and drizzle. But for most it will be dry. Some sunshine the best of this the further East you are. Some mist and low cloud. Winds under 20 mph.

Winds will be from the North and North East. Temps of 12C to 19C

Sunrise and Sunset

Stornoway – 05:43 and 21:17

South Uist – 05:50 and 21:17

Outlook

Thunderstorm warnings

So the Met Office issued several thunderstorm warnings for Sunday and Monday earlier today. These cover a large part of the UK but don’t cover the Western Isles. At this stage, the very worst will be over the mainland. But just because we aren’t in a thunderstorm doesn’t mean that our risk is zero. It can mean one of two things that the impacts of any storms for us are too low for a warning or the thunderstorms are likely to miss us. The greatest risk at the moment for us seeing thundery showers would be Sunday into Monday. But again stressing the point that there is a lot of uncertainty at this stage and I will keep you updated. This is one of the main things about doing these more in depth forecasts is to have the ability away from the shorter form forecasts to go into more detail to talk about the weather and warnings.

I will watch with interest how the forecast evolves in the coming days and how the Met Office amended its warnings and I will keep you updated. Below is the warning for thunderstorms that covers Scotland.

Anyway back to the outlook

Sunday – Overcast risk of showers with some sunny spells. A chance they could be thundery. Winds under 20 mph. Temps of 12C to 17C

Monday – Overcast with some sunny spells. Scattered showers heavy at times with winds increasing to 30 mph by the end of the day. Temps of 11C to 15C

Tuesday and Wednesday – Things will feel cooler as we enter to a cooler airmass. Sunshine and cloud. Mostly dry. Winds of 10 to 25 mph. Temps of 8C to 13C

Have a great evening

Friday 12th August Weather forecast for the Western Isles.

Good evening Western Isles. That was another dull and damp day with mist and low cloud a plenty. We are currently seeing plenty of cloud with some rain and drizzle. Heavy in places with mist and low cloud. A few sunny spells. Winds under 20 mph.

One thing I did note from today was the rise in visibility at Stornoway Airport from 1,800 meters to 27,000m from the 15:00 reading to the 16:00 reading. With the wind direction shifting to come in from the North.

Thanks to Roost Weather for the images.

Friday

Once again we are in a rut. A warm front sits close by to the Western Isles. Again we will see plenty of cloud mist and drizzle. Met Office surface pressure chart below.

Overnight – A cloud dominating night with spells of rain and drizzle with some mist and low cloud. Winds under 20 mph.

Morning and afternoon – Again staying cloudy with spells of rain and drizzle. Mainly light. Some mist and low cloud with fog patches at times. Some sunny spells. Winds under 10 mph

Evening – Yes more cloud with light rain and drizzle at times. Winds under 10 mph. Some breaks in the cloud.

Winds will be from the North and North East. Temps of 12C to 18C

Sunrise and Sunset

Stornoway – 05:40 and 21:20

South Uist – 05:48 and 21:20

Outlook

Saturday and Sunday – Sunshine and cloud light winds. Some rain and drizzle. Winds under 20 mph. temps of 12C to 19C

Monday and Tuesday – Sunshine and cloud with brisk winds gusting 20 to 40 mph. Temps of 12C to 15C

Longer range – Still a signal of more unsettled weather for next week but the weather pattern becomes more mobile then stuck under endless grey clouds.

Have a great evening

Thursday 11th August Weather forecast for the Western Isles.

Good evening Western Isles on this Wednesday evening we are seeing some rain and drizzle with plenty of cloud. Some rain and drizzle mainly across Lewis and Harris. Winds gusting 25 mph. Todays high of 19.1C

19.1C was the highest temperature at Stornoway Airport this is shown on the image below with credit to Roost Weather.

I don’t ask for much but I really could do with some more sunshine. Its been warm but we are really lacking on the sunshine front. Yes another heatwave for the Southern half of the UK. We just have to make the most of the good days or good half days that we get.

Thursday

A weather front sits across the Western Isles on Thursday. Below is the Met Office surface pressure chart for Thursday

Overnight – A cloud dominating night with spells of rain and drizzle. Some mist and low cloud. Winds of 10 to 30 mph.

Morning and afternoon – Staying mostly overcast with spells of rain and drizzle. The rain will become heavy at times. Rain gradually clearing away. Some sunny spells. Winds of 10 to 30 mph.

Evening – The rain and drizzle becomes more confined to Lewis. Plenty of cloud with some sunny spells. Winds under 20 mph.

Winds will be from the South West. Temps of 12C to 15C

Sunrise and Sunset

Stornoway – 05:38 and 21:22

South Uist – 05:46 and 21:22

Outlook

Friday – Overcast with some spells of rain and drizzle. Plenty of cloud. Light winds. Temps of 12C to 15C

Saturday and Sunday – Sunshine and cloud with light winds. Mainly dry. Temps of 12C to 19C

Monday – Sunshine and scattered showers. Winds increasing 10 to 30 mph. Temps of 12C to 17C

Long range – staying fairly unsettled as the weather becomes more mobile across the whole of the UK next week.

Have a great evening.

Wednesday 10th August Weather forecast for the Western Isles.

Good evening Western Isles on this Tuesday evening we are seeing plenty of cloud with some sunshine. Winds gusting 40 mph and today’s high of 16.8C and 18.1C was recorded in Ness from a personal weather station.

It’s been a fairly windy day across our islands today. This chart below from Roost Weather highlights the winds through out the day at Stornoway Airport.

Wednesday

Wednesday will start off dry but spells of rain will move in later in the day. We will see an approaching weather front pushing into the Western Isles. It will be another mild day with brisk winds. Below is the surface pressure chart from the Met Office for Wednesday.

Overnight – Will see plenty of cloud with some clear skies. Spotty spells of rain and drizzle but for most staying dry. Winds of 20 to 40 mph.

Morning – Sunshine and cloud with some decent spells of sunshine. For most largely dry but some light rain and drizzle. Winds of 20 to 40 mph.

Afternoon and evening – Rain will move in from the West but for parts of Uist and Barra will stay dry with plenty of cloud. For the rest of the islands rain will move in and we will see some occasional heavier spells of rain. Some low cloud and drizzle at times. Winds of 20 to 40 mph. But slowing easing under 20 mph to end the night.

Winds will be from the South West and temps of 12C to 19C

Sunrise and Sunset

Stornoway – 05:36 and 21:24

South Uist – 05:44 and 21:25

Outlook

Thursday – We are going to see an overcast day with spells of rain heavy at times. Winds of 10 to 25 mph from variable directions. Temps of 12C to 16C

Friday – Overcast with spells of rain and drizzle. Winds under 20 mph. Temps of 12C to 15C

Saturday and Sunday – Sunshine and cloud. A few scattered showers with winds under 20 mph. Temps of 12C to 18C

Have a great evening

Tuesday 9th August Weather forecast for the Western Isles.

Good evening Western Isles on this Monday evening we are seeing plenty of cloud with rain and drizzle. Some mist and low cloud. Winds gusting 10 to 25 mph and today’s high of 17.5C

It’s been another dull day with low visibility and mist, and fog patches. Just such a stagnant pattern. Barra has particularly seen low cloud. Below we have the Airport Metar from today which highlights the low cloud.

More here https://metar-taf.com/EGPR

Tuesday

Overnight – Spells of rain will move across the Western Isles this will be heavy at times. Further mist and low cloud. Winds of 20 to 40 mph. It will be a mild night for us with temps staying around 13C to 15C

Below is the 4am chart from the UKV Met Office model from the Weather Outlook website.

Morning and afternoon – More of the same we are going to see plenty of cloud with spells of rain and drizzle. Mist and low cloud. Sunshine at times in the afternoon. It’s going to be warm despite the cloud and drizzle. Winds of 20 to 40 mph. Temps reaching 20C in places.

Evening – Mainly overcast with spells of rain and drizzle. Mist and low cloud. Some sunny spells. Winds of 20 to 40 mph.

Winds will be from the South West. Temps of 14C to 20C

Sunrise and Sunset

Stornoway – 05:34 and 21:27

South Uist – 05:42 and 21:27

Outlook

Wednesday – Sunshine and cloud with brisk winds. Some scattered showers. Winds of 20 to 40 mph. Again a warm day with temps of 12C to 20C

Thursday – Will very much depend on the position of the cold front. We could see further spells of rain heavy at times. But the worst of the rain could stay offshore.

Sunshine and cloud with spells of rain and showers. Winds of 10 to 30 mph. Temps of 14C to 18C

Friday and Saturday – Sunshine and cloud with light winds under 20 mph. Temps of 12C to 19C

Have a great evening

Monday 8th August Weather forecast for the Western Isles.

Good evening Western Isles on this Sunday evening we are seeing an overcast evening with spells of drizzle along with mist and low cloud. Winds are under 20 mph and today’s high of 16.6C so far.

Monday

A cold front will sweep across the Western Isles on Monday bringing more rain. This cold front is highlighted on the Met Office surface pressure chart below

Overnight – A cloud dominating night with some clear spells. Rain and drizzle will move in from the West as the night goes and becoming heavy at times. Winds of 10 to 30 mph.

Morning and afternoon – Staying overcast with occasional sunny spells. Rain will become heavy and slow moving at times. Further rain and drizzle. Winds of 20 to 40 mph.

Evening – Overcast with spells of rain and drizzle. Mist and low cloud with fog patches. Winds of 10 to 30 mph

Winds will be from the South West and temps of 12C to 17C

Sunrise and Sunset

Stornoway – 05:31 and 21:29

South Uist – 05:40 and 21:29

Outlook

Tuesday and Wednesday – Two very similar days with winds being the main feature. Winds of 20 to 40 mph widely with a risk of some gusts reaching 50 mph. Sunshine and cloud. We are likely to see warm temperatures.

Here is the GFS chart for Wednesday showing the 20C note because we are on small islands the models sometimes struggle with the resolution of the high temps so 15C for Uist and Barra is likely to be on the lower side.

GFS chart for Wednesday for 15:00

The temps for later in the week have back off somewhat on recent runs we were looking at 20/22C for Thursday and Friday next week and things will change between now and then and at this stage things are looking under 20C

Thursday – Overcast with spells of rain and drizzle but lighter winds under 20 mph. Temps of 12C to 16C

Friday – A fine and dry day with sunshine and cloud. Winds under 20 mph. Temps of 12C to 17C

Next weekend – Fine and dry with light winds along with sunshine and cloud.

Have a great evening.

Sunday 7th August Weather forecast for the Western Isles.

Good evening Western Isles on this Saturday evening we are seeing plenty of cloud with rain and showers. Heaviest for Lewis and Harris drier for Uist and Barra. Some hazy sunshine. Winds gusting 40 mph and today’s high of 15.1C

It has been a North and South divide across the Western Isles today as shown by the rainfall accumulation map from Netweather. Some spots estimated at 24 mm for the last 24 hours

Sunday

Overnight – Plenty of cloud with some rain and drizzle at times. This heavy in places with some mist and low cloud. Winds of 10 to 30 mph.

Morning and afternoon – Sunshine and cloud. Some decent spells of sunshine at times. Some scattered showers and rain at times this will be heavy. Winds of 10 to 30 mph.

Evening – Staying fairly cloudy with some outbreaks of rain and drizzle. Mist and low cloud. Winds under 20 mph.

Sunday’s weather we are very much in between weather fronts and high pressure dominates across the South of the UK with brisk airflow across our islands.

Sundays surface pressure chart from the Met Office

Winds will be from the South West and temps of 12C to 18C

Sunrise and Sunset

Stornoway – 05:29 and 21:32

South Uist -05:38 and 21:32

Outlook

Monday – Overcast with spells of rain heavy at times some mist and low cloud. Winds of 20 to 40 mph. Temps of 14C to 18C

Tuesday – Sunshine and cloud becoming warmer some rain and drizzle. Winds of 20 to 40 mph. Temps of 12C to 20C

Wednesday and Thursday – Sunshine and cloud winds slowly easing and becoming drier. Winds of 10 to 30 mph. Temps of 12C to 22C

Friday – Possibly becoming even warmer but a long way off yet and plenty of uncertainty. I will take a more detailed look at the high temps on my Sunday evening in depth forecast.

Have a great evening.

Saturday 6th August Weather forecast for the Western Isles.

Good evening Western Isles on this Friday evening we are seeing plenty of cloud with some rain and drizzle. Some clear spells. Winds gusting 25 mph and today’s high of 14.9C

Saturday

We are going to see winds strengthening on Saturday with a frontal system moving across the islands. The strongest winds are likely across Lewis and Harris with gusts reaching 45 mph. The chart below comes from the Met Office UKV model and the image from the weather outlook.

Overnight – We are going to see plenty of cloud with spells of rain and drizzle this heavy at times. Winds of 10 to 30 mph.

Morning and afternoon – Plenty of cloud with some dry spells but further rain and drizzle at times becoming heavier in the later afternoon. Some sunny spells but largely overcast. Winds of 20 to 40 mph.

Evening – Overcast with further spells of rain and showers. Heaviest for Lewis and Harris drier for Uist and Barra. A few sunny spells. Winds of 20 to 45 mph.

Winds will be from the South West. Temps of 12C to 17C

Sunrise and Sunset

Stornoway – 05:27 and 21:34

South Uist – 05:36 and 21:34

Outlook

Sunday – An overcast day with brisk winds with spells of rain and drizzle. Winds of 10 to 30 mph. Temps of 12C to 17C

Monday – Spells of rain and showers heavy at times with plenty of cloud. Winds of 20 to 40 mph. Temps of 12C to 15C

Tuesday – A few days off as yet but it’s been showing on a number of forecast model runs in a row so keeping an eye on it. But a deep area of low pressure will push close to Iceland and could see winds gusting 50 mph for a time. This chart below again from the Met Office UKV and the weather outlook website.

So Tuesday would be an overcast day with spells of rain and drizzle with winds gusting 40 to possibly 50 mph. Temps of 12C to 17C

Wednesday – More of the same with brisk winds gusting 20 to 40 mph overcast and spells of rain and drizzle. Temps of 12 to 19C

Have a great evening

Friday 5th August Weather forecast for the Western Isles.

Good evening Western Isles on this Thursday evening we are seeing rain and showers moving across the islands. These are heavy in places. Some sunny spells with plenty of cloud. Winds gusting 30 mph and today’s high of 15.7C

We have seen a wet day for South Uist with 10 mm of rain being recorded at the Met Office site.

Image credit to Roost Weather

Friday

Overnight – Clear skies and cloud with some showers heavy at times. Temps dropping down into single figures in spots. Winds under 20 mph.

Morning and afternoon – Some decent and prolonged sunshine with variable amounts of cloud. A few showers heavy at times. Becoming more scattered later in the day. Winds under 20 mph.

Evening – Becoming drier with a few scattered showers. Some decent and prolonged sunshine at times,

Sunrise and Sunset

Stornoway – 05:25 and 21;36

South Uist – 05:34 and 21:36

Outlook

Both the GFS and ECMWF show heavy rain across Lewis and Harris on Saturday evening us the slider to move between images. Image credit to WX charts.

Saturday – Will be an overcast day with spells of rain and drizzle.Heavier rain into the evening. Winds of 20 to 40 mph

Sunday – Sunshine and showers with plenty of cloud and winds of 20 to 40 mph.

Monday – Overcats with winds gusting 20 to 40 mph heavy rain a times. Temps of 12C to 17C

Tuesday – Largely fine and dry and feeling warm with sunshine and cloud. Winds of 20 to 40 mph. Temps of 12C to 20C

Have a great evening.