Mountain Weather
Information Service
West Highlands Forecast

West Highlands

Western Highlands accessible from, and south of, Glenfinnan (Road to the Isles) and Glen Spean (includes Creag Meagaidh). This area include Ben Nevis and the mountains around Glencoe. In the east, includes Ben Alder south to Loch Lomond and Trossachs NP. Includes Arran and Mull.

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Viewing Forecast For

West Highlands
Wednesday 17th August 2022
Last updated Tue 16th Aug 22 at 4:50PM

Summary for all mountain areas

A ridge of high pressure will bring an improving day with low cloud breaking to reveal occasional sunshine. However, the legacy of a front across Wales and S Pennines will give low cloud and patchy drizzle in the morning, but brighter conditions will arrive into the afternoon, and the gusty northeast wind will ease.

Headline for West Highlands

Cold start. Hills clearing and light winds, increasing later. Patchy rain evening.

How windy? (On the Munros)

Light and variable winds in morning, becoming southerly 10 to 15mph in the afternoon, 20-25mph near west coast later.

Effect of the wind on you?

Small much of the day.

How Wet?

Rain very unlikely until late on

Dry much of the day, under a ridge of high pressure. However, some isolated spots of rain possible western coastal hills in afternoon, ahead of a front that will bring patchy rain inland during the evening.

Cloud on the hills?

Hills becoming mostly clear

Any early banks of low cloud, will soon disperse to leave a mostly clear day across the hills. However, some patches of low cloud may continue to drift onto western coastal hills at times.

Chance of cloud free Munros?

90%, but 70% western coastal hills.

Sunshine and air clarity?

Spells of sunshine breaking through. High cloud filtering in from west in afternoon. Visibility very good or excellent.

How Cold? (at 900m)

3C, lifting to 6 to 9C; highest inland.

Freezing Level

Above the summits, but a skim of grass frost some glens and corries at first.

Viewing Forecast For

West Highlands
Thursday 18th August 2022
Last updated Tue 16th Aug 22 at 4:50PM

How windy? (On the Munros)

Southwesterly 25 to 30mph, perhaps 35mph at times.

Effect of the wind on you?

Blustery conditions; will impede walking at times through the day, particularly across the tops.

How Wet?

Frequent rain and drizzle

A fairly wet day with frequent rain and drizzle throughout the day. However, across the central Highlands, rainfall will be more occasional.

Cloud on the hills?

Extensive

Cloud will shroud the hills extensively in fog throughout the day. Bases around 500-800m, but occasional breaks higher up, these mostly well inland.

Chance of cloud free Munros?

20%

Sunshine and air clarity?

Overcast. Visibility often poor due to drizzly rain.

How Cold? (at 900m)

7 to 9C

Freezing Level

Above the summits

Viewing Forecast For

West Highlands
Friday 19th August 2022
Last updated Tue 16th Aug 22 at 4:50PM

How windy? (On the Munros)

Southwesterly 20 to 30mph, strongest toward west coast where risk 35mph tops at times.

Effect of the wind on you?

Will impede walking at times over higher slopes, most frequently western coastal hills.

How Wet?

Frequent showers, often drizzly

Frequent showers through the day, and these often drizzly in nature, with some heavier bursts mixed in at times too. Tending to ease later in the day.

Cloud on the hills?

Fairly extensive higher slopes

Cloud will frequently should higher slopes, with bases varying between 700-1000m. Some occasional breaks higher up, mainly in the central Highlands.

Chance of cloud free Munros?

20%

Sunshine and air clarity?

Mostly cloudy, a little sun breaking through at times. Visibility often poor due to drizzly showers, but improving more widely later.

How Cold? (at 900m)

5 to 8C, coolest near west coast.

Freezing Level

Above the summits

Planning Outlook

A more unsettled period of weather ahead over the coming week, as low pressure will be often anchored to the northwest of the British Isles. This will result in west to southwesterly winds prevailing, with periods of strong winds or even gales at times, with frequent rainfall across western mountains, and rainfall more occasional further east where the best of the dry and bright weather will occur. Generally cooler, but warm sectors will move in at times over England and Wales bringing an increase in humidity levels once again.