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.)

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Viewing Forecast For

The Northwest 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 The Northwest 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 20mph in the afternoon, 25-30mph near west coast later.

Effect of the wind on you?

Negligible in morning, may increasingly impede walking in the afternoon across western coastal hills.

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 5 to 8C; highest inland.

Freezing Level

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

Viewing Forecast For

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

How windy? (On the Munros)

Southwesterly 25 to 35mph, risk 40mph at times western coastal hills.

Effect of the wind on you?

Very blustery conditions; fairly arduous conditions at times through the day, most widely across western coastal hills.

How Wet?

Rain and drizzle on and off

Rain and drizzle will be on and off through the day across western mountains. However, further east, rainfall more occasional with lengthy dry spells.

Cloud on the hills?

Extensive in the west

Cloud will cover western hills extensively through the day, lowest bases on and near Skye. Further east, cloud rare below 800-900m, with some occasional breaks.

Chance of cloud free Munros?

30% in west, 60% in east.

Sunshine and air clarity?

Mostly cloudy, some sun breaking through at times in the east. Visibility poor in the west, often good in the east.

How Cold? (at 900m)

7 to 9C

Freezing Level

Above the summits

Viewing Forecast For

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

How windy? (On the Munros)

Southwesterly 25 to 35mph, strongest toward west coast where risk 40mph tops at times.

Effect of the wind on you?

Blustery; fairly arduous conditions for periods, especially across 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. Showers more occasional in the east.

Cloud on the hills?

Fairly extensive higher slopes in the west

Cloud will frequently cover higher slopes in the west, with bases varying around 700-1000m. Further east, bases more broken and coming and going over tops.

Chance of cloud free Munros?

30%

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.