Western Highlands accessible from, and south of, Glenfinnan (Road to the Isles) and Glen Spean (includes Creag Meagaidh). This area includes Ben Nevis and the mountains around Glencoe. In the east, from Ben Alder south to Loch Lomond and Trossachs NP. Also Arran and Mull.
West Highlands
Friday 1st May 2026
Last updated
Thu 30th Apr 26 at
3:09PM
As pressure falls slowly, so extensive high level cloud and bursts of rain (perhaps thundery in places later in day) will spread east - although the precise locations of the showery rain remains uncertain. Patches of low cloud, mainly near Irish Sea coasts will accompany the rain.
A few bursts of rain; fairly light wind.
Southerly, 15mph or on coastal hills 20-25mph.
Fairly small
Risk a burst of rain; small chance lightning
Some, perhaps most areas dry all day, but scattered bursts of rain will spread east during morning. Very low risk isolated thunder.
Little if any until evening - may then form particularly on the islands
The mountains substantially clear of cloud, but in evening, patches will form at various heights, mainly Mull to Arran, but possibly also Loch Lomond NP.
80%
Extensively cloudy but bright as weak sun intermittently comes through high cloud layers. Visibility very good, slight haze develops.
8C coastal hills. Elsewhere rising to a very warm 13C by afternoon.
Above the summits.
West Highlands
Saturday 2nd May 2026
Last updated
Thu 30th Apr 26 at
3:09PM
(Low confidence in this forecast) Direction varied; widely 10mph or less.
Negligible
Rain becoming more widespread
After overnight rain, the morning probably largely dry. Increasingly bursts of rain, in places setting in and there may also be heavy thundery bursts.
Probably very extensive.
Particularly toward the coast, cloud may for periods form below 300m. Even well inland in rain, fragments may form upward from forest canopies, although most cloud above 600m, and perhaps clearing to higher tops at times.
30%
Occasional sunshine. The air very clear, but visibility poor in rain.
Between 5C near the coast and 8C, perhaps 10C well inland.
Above the summits.
West Highlands
Sunday 3rd May 2026
Last updated
Thu 30th Apr 26 at
3:09PM
Direction varied widely 10mph or less. May be or become north to northeasterly up to 25mph Arran & S Loch Lomond NP.
Mostly negligible.
Little or no rain
Risk of the odd light shower. Low risk of a broad band of rain approaching Scotland from the south affecting Arran and southern Loch Lomond NP - highest risk afternoon.
May persist higher tops
Cloud may be extensive on higher slopes morning, but by midday should be above about 1000m, possibly 1200m. In rain later cloud likely to descend onto higher slopes.
60%
Little or no sunshine. Excellent or superb visibility - though turning misty in rain.
3C, rising to 5 to possibly 7C inland Lochaber.
Just above highest summits. Frost some valleys at first.
Less settled from the weekend onwards. Rain will be more frequent although apart from on Saturday night and Sunday (when a band of rain will move north about as far as central Scotland - the detail presently very uncertain) total rainfall will remain fairly small. Temperature levels will drop markedly, particularly on the Scottish Highlands, where overnight and mornings higher slopes will be below freezing point on Scottish Highlands - with hail and snow flurries. Overnight frosts may extend as far south as Wales again.