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.


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


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

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