Mountain Weather
Information Service
Northwest Highland Forecast

The Northwest Highlands

Areas north from Knoydart in the west, and the Great Glen towards the east (NB. Does not include Mull and areas west of Loch Linnhe, these are found in the West Highlands forecast.)

Monday's Forecast

Moderate breeze, locally gusty
Sunshine and showers
Cool to mild

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Click here to download the latest PDF Last Updated Sun 30th Aug 26 at 4:31PM Last Updated Sun 30th Aug 26 at 4:31PM
View our low-graphics version Last Updated Sun 30th Aug 26 at 4:31PM Last Updated Sun 30th Aug 26 at 4:31PM

Viewing Forecast For

The Northwest Highlands
Monday 31st August 2026
Last updated Sun 30th Aug 26 at 4:31PM

Summary for all mountain areas

Showers scattered across most hills through morning, locally clustering for frequent falls with heavy bursts. Showers gradually clear eastward, spotty light rain fades out with time as sunny bursts break out (though weakened by high cloud). Cool-to-mild, but feeling chilly in a strengthening wind.

Headline for The Northwest Highlands

Early showers fade, sun breaking out; becoming blustery

How windy? (On the Munros)

Starting generally southerly but variable, 10-15mph, orienting westerly and strengthening, to 25-30mph, briefly stronger over highest summits.

Effect of the wind on you?

Fairly small to start, but increasingly blustery affecting ease of walking in exposure, and briefly more strenuous with marked wind chill.

How Wet?

Morning showers, trending drier

Showery rain through morning, some drier moments, but some heavier bursts too. Tending to fade afternoon to just spotty light rain west with extended dry windows.

Cloud on the hills?

Lowest morning, often covering west tops

Fairly widespread to low elevations early in the day. Bases rise, approaching 600-800m in the west, and increasingly breaking up, to clear summits to the east. Western summits will see a few clear windows later, but with summit caps regularly returning.

Chance of cloud free Munros?

30%, rising to 60% eastern summits

Sunshine and air clarity?

Largely cloudy to start, glimpses of sun increasingly breaking out, more frequent sun near west coast late in day, though some high cloud will move in from the west. Visibility very good away from showers and cloud.

How Cold? (at 900m)

8C tending to lower during day to 6C. Feeling near then just below freezing as wind increases.

Freezing Level

Above the summits.

Viewing Forecast For

The Northwest Highlands
Tuesday 1st September 2026
Last updated Sun 30th Aug 26 at 4:31PM

How windy? (On the Munros)

West-southwesterly 40-50mph for several morning hours, risk stronger gusts, particularly north; later lessening slightly.

Effect of the wind on you?

Arduous walking conditions, buffeting affecting balance in exposure and locally more difficult. Considerable wind chill.

How Wet?

Early rain then showers

A few hours of persistent rain from around dawn, breaking up into showers, these briefly heavy but becoming scattered.

Cloud on the hills?

Western tops mostly covered

Covering hills fairly widely above 600-800m at first. Bases rising, some breaks forming, best in the east; often capping west coast tops above 800-900m.

Chance of cloud free Munros?

Rising to 40%

Sunshine and air clarity?

Sun increasingly breaking through, best eastern areas. Visibility fairly good, though some haze around Skye.

How Cold? (at 900m)

4 to 6C, coolest toward far northwest. Feeling like -5C in the wind, or colder if speeds rise.

Freezing Level

Above the summits.

Viewing Forecast For

The Northwest Highlands
Wednesday 2nd September 2026
Last updated Sun 30th Aug 26 at 4:31PM

How windy? (On the Munros)

Generally southerly, some variability, 15-20mph, later strengthening and shifting southwesterly, to above 30mph into night.

Effect of the wind on you?

Fairly small during daylight, deteriorating into night.

How Wet?

Mostly little until later

Some patchy rain around southern hill groups, dry windows, and perhaps substantially dry further north. Later in the day, rising chance of patches forming more widely.

Cloud on the hills?

Mostly southern high terrain

Cloud banks at varied heights, mostly south and east hills, will tend to lift and break up, though clinging to high southern terrain. Little expected north of Ullapool, though caps tending to increase over high terrain later.

Chance of cloud free Munros?

40% south to 70% north

Sunshine and air clarity?

Patchy sun in the north, locally more sunny, but trending cloudier. Excellent visibility out of cloud.

How Cold? (at 900m)

Starting 3 or 4C north, rising towards 7C; warmer south, rising locally to 9C.

Freezing Level

Above the summits.

Planning Outlook

A generally unsettled outlook during the first two weeks of September with frequent rain and strong winds. Low pressure dominates and a series of frontal systems move in from the Atlantic. West to southwesterlies, often gale force over the mountains in the second half of this coming week. Heavy rain most prolonged in the west where increasingly wet underfoot, streams rising to be in spate. Low cloud often covering the hills, rarely clearing western summits. Temperatures varying, some notably cooler days for Scotland, at times more humid air mainly toward the south. A few brighter windows will break out, mostly south and eastern areas, but always brief and any detail on timing remains uncertain.