Mountain weather

Southwest Highlands

Southwest Highlands Mountain weather forecast table

Confidence

High confidence for the general story, becoming Low on Wednesday.

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.

hazard Severe Chill Effect
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.
hazard Poor Visibility
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.

hazard Gales
Gale force winds (gusts over 50mph) make walking difficult and strenuous with a potential to be blown over by gusts. There is often a marked increase in winds through cols or on exposed ridges and summits. Distances can take longer to cover and compass bearings become harder to follow accurately.
hazard Thunderstorms
Lightning is a significant mountain hazard which can result in serious injury or death. Mountain terrain often leaves one highly exposed to lightning strikes. Hail may give unpleasant conditions with torrential rain and localised flash flooding also possible, mainly in Summer months.

Mountain weather forecast

Bright spells and showers, wintry on the tops. Cold and windy.

06:00 09:00 12:00 15:00 18:00 21:00
Weather
(at 800m)
Sleet shower (night) Sleet shower (day) Sleet shower (day) Sleet shower (day) Sleet shower (night) Sleet shower (night)
Chance of precipitation
(at 800m)
40% 40% 40% 30% 20% 20%

Wind direction and speed (mph)
Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m SW
41
S
39
SW
41
SW
33
SW
31
SW
31
900m SW
30
SW
27
SW
28
SW
25
SW
23
SW
23
600m SW
42
SW
38
SW
35
SW
30
SW
28
SW
29
300m S
20
S
20
SW
21
SW
16
SW
15
SW
15
Glen SW
15
SW
14
SW
17
SW
12
SW
11
SW
11
Wind gust (mph)
Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m 49 48 52 43 39 40
900m 39 36 39 34 32 32
600m 49 45 44 38 36 37
300m 30 29 32 26 25 26
Glen 30 28 34 25 23 24

Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m
-1°
-1°
-1°
-1°
-1°
-1°
900m
600m
300m
Glen
Freezing Level
1,000m
1,100m
1,000m
1,000m
1,000m
1,100m

Altitude above mean sea level
06:00 09:00 12:00 15:00 18:00 21:00
1300m
-10°
-10°
-10°
-10°
-9°
-9°
900m
-6°
-6°
-6°
-5°
-5°
-5°
600m
-4°
-4°
-4°
-3°
-3°
-3°
300m
Glen

Additional weather information

Met Office Aberdeen meteorologist's view

Feeling cold on the tops with a severe wind chill, especially in showers. Streams and rivers will be high due to recent heavy rain.

Weather

Bright or clear spells and showers, some heavy with a small chance of thunder. The showers will fall as sleet or snow above 800m but will become less frequent through the late afternoon and evening. Cold and windy conditions at height.

Chance of cloud-free hill tops

40%, best chance in far south and east.

Low cloud and visibility

Occasional cloud above 600 or 700m but rather more persistent over Nevis ranges and Glen Coe. Broken cloud above 800m over the Trossachs, southern Argyll and Arran. Visibility mainly good away from cloud, but poor at times in showers.

Sunrise:
Sunset:

Mountain weather information

Weather

Mostly dry overnight then rain soon spreading east in the morning. Rain, preceded by snow above 800m, will be heavy and persistent for most of the day. Rain combined with very strong winds will bring drenching conditions and possible flooding. Most of the rain clearing around mid-afternoon followed by blustery showers, wintry on the tops and possibly heavy and thundery.

Chance of cloud-free hill tops

Less than 10%, becoming 70% from mid-afternoon.

Maximum wind speed expected

Southerly 50 to 60mph gusts 80mph. Mobility impossible on the tops.

Temperature

  • At 800m Plus 2C rising to 5C.
  • Glen Plus 7C rising to 10C.
  • Freezing level Above summits.

Low cloud and visibility

Extensive cloud above 500 or 600m. Poor visibility in continuous rain. Improving from mid-afternoon as cloud breaks up but poor at times in showers.

Mountain weather information

Mon 24 Feb

Sunrise:
Sunset:

Bright spells and frequent showers, perhaps heavy and thundery. Showers wintry above 700m then 500m later. Bitterly cold on the tops with strong to gale force southwest winds. Freezing level 900m falling to 700m.

Tue 25 Feb

Sunrise:
Sunset:

Sunny spells and a few scattered showers, wintry above 400m. Breezy on the tops. Freezing level 600 or 700m.

Wed 26 Feb

Sunrise:
Sunset:

Dry start then a band of rain, sleet or snow is likely to spread east. Strong winds likely for a time. Low confidence for details.

Updated at:

Summit specific forecast

Mountain summit forecast map

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For snow and avalanche hazard forecasts please visit Scottish Avalanche Information Service