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 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.


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


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

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