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
Monday 27th September 2021
Last updated Sun 26th Sep 21 at 2:24PM

Summary for all mountain areas

Residual heavy rain and low cloud from overnight will clear east in morning. Chiller conditions follow to all areas with a gusty southwesterly wind and showers; most frequent across Wales and also western Scotland where they will fall as sleet on the highest munros.

Headline for West Highlands

Rain at first, then showers developing from west, sleet tops. Strong winds.

How windy? (On the Munros)

Southwesterly increasing from dawn to reach 25 to 35mph by afternoon, risk by then 40mph tops in and around showers.

Effect of the wind on you?

Increasingly blustery with conditions fairly arduous with significant wind chill and buffeting.

How Wet?

Heavy rain at dawn, then showers; sleet tops.

Heavy rain at dawn, soon clears to the east. Then showers pushing in from the west with the risk of hail and thunder. Showers will fall as sleet and at times wet snow across the highest tops.

Cloud on the hills?

Often covering higher slopes.

Cloud bases will fluctuate around 800-1200m. through the day, lowest bases in and around showers when occasional patches to 600m. Hills near and north of Glen Spean, mostly clear.

Chance of cloud free Munros?

30%, but 70% near/north Glen Spean.

Sunshine and air clarity?

Often cloudy, but occasional patches of sun breaking through between showers. Visibility good, but slight haze.

How Cold? (at 900m)

3 or 4C

Freezing Level

Close to freezing highest tops

Viewing Forecast For

West Highlands
Tuesday 28th September 2021
Last updated Sun 26th Sep 21 at 2:24PM

How windy? (On the Munros)

Southwesterly in the range 20 to 30mph, may ease during the afternoon.

Effect of the wind on you?

Will likely impede walking across the hills for several hours with marked buffeting and wind chill.

How Wet?

Clusters of showers, at times frequent.

Clusters of showers, at times frequent across western hills and falling as sleet or at times wet snow on highest tops. Later in the day, risk of rain becoming prolonged.

Cloud on the hills?

Covering higher slopes frequently

Cloud will likely cover higher slopes above 700-900m frequently in fog through the day. Although hills near and north of Glen Spean, bases mostly above 1000m.

Chance of cloud free Munros?

30%

Sunshine and air clarity?

Mostly cloudy. Visibility good at times, but poor in rain.

How Cold? (at 900m)

3 or 4C

Freezing Level

Just above highest tops

Viewing Forecast For

West Highlands
Wednesday 29th September 2021
Last updated Sun 26th Sep 21 at 2:24PM

How windy? (On the Munros)

Northwesterly 25 to 40mph at first will slowly ease to around 20 to 25mph.

Effect of the wind on you?

Expect arduous conditions for a few hours from dawn with significant wind chill and buffeting, easing by afternoon.

How Wet?

Scattered showers, snow tops.

A scattering of showers, these mainly in the west and falling as snow above 1000m.

Cloud on the hills?

Frequently covering western tops.

Cloud bases generally fluctuating around 1000-1300m, lowest in the west, with patches down to 800m in and around showers. Eastern hills mostly clear.

Chance of cloud free Munros?

50%

Sunshine and air clarity?

Fairly cloudy, but some bursts of sun breaking through. Visibility very good.

How Cold? (at 900m)

2 or 3C

Freezing Level

1100-1200m

Planning Outlook

An unsettled and windy period of weather over the next 7 to 10 days with frequent areas of low pressure bringing bouts of upland gales or severe gales and rain; large falls accumulating across western hills. Chillier than of late, some days near freezing on higher Scottish tops with sleet and wet snow at times on the highest Munros.