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.)

Click here to download the latest PDF Last Updated Tue 11th Aug 20 at 3:44PM Last Updated Tuesday 11th August 2020 at 3:44PM
View our low-graphics version Last Updated Tue 11th Aug 20 at 3:44PM Last Updated Tuesday 11th August 2020 at 3:44PM

Viewing Forecast For

The Northwest Highlands
Wednesday 12th August 2020
Last updated Tuesday 11th August 2020 at 3:44 PM

Summary for all mountain areas

Very warm or hot by afternoon and very high humidity - anticipate dehydration and possible sunburn. Scattered thunderstorms will drift about slowly, mainly England and Wales, bringing locally torrential rain.

Headline for The Northwest Highlands

Areas of thundery rain soon clearing. Very warm with hazy sunshine.

How windy? (On the Munros)

Winds varying in direction, 10mph or less.

Effect of the wind on you?

Negligible.

How Wet?

Rain unlikely by mid morning

Overnight thunderstorms will by dawn have largely cleared northwards. Then very likely dry although toward Great Glen, small risk isolated bursts of rain and perhaps thunder in afternoon.

Cloud on the hills?

Extensive after dawn. Will improve: most summits will clear.

After dawn: very varied; some areas foggy from lower slopes or glens up whilst in others fog higher up, and some summits between cloud layers. Will progressively improve as most higher summits clear, although in places patches above 750m to in afternoon 900m. However coastal slopes may have banks of fog from lower slopes up on and off all day.

Chance of cloud free Munros?

20% rising to 80% by early afternoon

Sunshine and air clarity?

Patchwork of hazy sunshine after a widely dull and misty start. Visibility improving although a haze most or all day.

How Cold? (at 900m)

15C.

Freezing Level

Above the summits.

Viewing Forecast For

The Northwest Highlands
Thursday 13th August 2020
Last updated Tuesday 11th August 2020 at 3:44 PM

How windy? (On the Munros)

Direction likely to vary 10mph or less. Near the coast, mostly northerly, up to 20mph - not necessarily on higher slopes.

Effect of the wind on you?

Mostly negligible

How Wet?

Rain not expected

Cloud on the hills?

Clearing nearly all summits

Cloud extensive from dawn, forming many lower slopes up, although toward the west coast south from Wester Ross, only patches on higher tops - where by late morning, most summits cloud free. Elsewhere the improvement slower: most or all summits cloud free by mid afternoon.

Chance of cloud free Munros?

70%

Sunshine and air clarity?

Cloud breaking, particularly western mountains to give patches of sun. Probably haze, although perhaps excellent visibility northern mountains.

How Cold? (at 900m)

Varied, as low as 7C where in cloud, but up to 13C near west coast in afternoon.

Freezing Level

Above the summits.

Viewing Forecast For

The Northwest Highlands
Friday 14th August 2020
Last updated Tuesday 11th August 2020 at 3:44 PM

How windy? (On the Munros)

Direction varied; 10mph or less.

Effect of the wind on you?

Negligible

How Wet?

Rain not expected

Cloud on the hills?

Very little by late morning

Ribbons of fog from valleys up after dawn, in some areas extensive. Nevertheless, some summits cloud free (in places above the fog). The cloud will all or nearly all clear by mid or late morning, but may leave patches on higher tops near the coast.

Chance of cloud free Munros?

70%

Sunshine and air clarity?

Banks of cloud will tend to break up to give sunshine. Far north may be most cloudy. Haze very likely lifting to give excellent or superb visibility.

How Cold? (at 900m)

10C, rising away from far north to 17C.

Freezing Level

Above the summits.

Planning Outlook

Remaining warm and particularly England and Wales humid. However, thundery rain will become mostly confined to Wales, whilst the Scottish Highlands are extensively dry. Overall extensive sunshine, although banks of very low cloud, mainly more eastern mountains, including those in east Wales. A change to wetter and gradually less warm conditions across Britain is likely early next week.