Mountain weather
Southwest Highlands Mountain weather forecast table
Confidence
High confidence for high pressure to bring settled, dry and colder conditions from Wednesday. Some uncertainty on low cloud detail for Tuesday and Wednesday.
This evening forecast
A mainly cloudy evening with areas of hill fog, especially on southeasterly upslopes. Fresh winds at height. Freezing level above summits.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
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.
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.
Mountain weather forecast
Cloudy with hill fog. Patchy drizzle in SE, but some brighter breaks in NW.
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
Weather (at 800m) |
|
|
|
|
|
|
|
|
Chance of precipitation (at 800m) |
20% | 20% | 20% | 20% | 10% | 10% | 20% | 20% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 1300m |
SE
12
|
SE
11
|
SE
9
|
SE
9
|
SE
8
|
SE
6
|
SE
7
|
E
10
|
| 900m |
SE
14
|
SE
12
|
SE
12
|
SE
12
|
SE
11
|
SE
6
|
SE
4
|
NE
5
|
| 600m |
S
5
|
SE
6
|
S
5
|
SE
6
|
S
5
|
SE
4
|
S
4
|
SE
5
|
| 300m |
E
5
|
SE
4
|
E
5
|
SE
4
|
E
4
|
E
5
|
E
4
|
E
3
|
| Glen |
N
3
|
NW
3
|
N
3
|
N
3
|
NW
3
|
SE
2
|
W
2
|
N
2
|
Wind gust (mph)
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 1300m | 16 | 14 | 11 | 11 | 11 | 9 | 9 | 12 |
| 900m | 18 | 15 | 15 | 15 | 14 | 8 | 6 | 7 |
| 600m | 7 | 8 | 6 | 8 | 7 | 6 | 6 | 7 |
| 300m | 11 | 6 | 8 | 6 | 7 | 8 | 6 | 5 |
| Glen | 7 | 6 | 5 | 5 | 5 | 4 | 4 | 4 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 1300m |
2°
|
2°
|
1°
|
1°
|
1°
|
1°
|
0°
|
0°
|
| 900m |
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
| 600m |
6°
|
6°
|
5°
|
5°
|
5°
|
5°
|
4°
|
4°
|
| 300m |
7°
|
7°
|
6°
|
6°
|
7°
|
7°
|
6°
|
6°
|
| Glen |
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
7°
|
7°
|
| Freezing Level |
1,800m
|
1,800m
|
1,900m
|
1,900m
|
1,900m
|
1,900m
|
1,800m
|
1,700m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 1300m |
-3°
|
-2°
|
-2°
|
-2°
|
-2°
|
-2°
|
-3°
|
-4°
|
| 900m |
-3°
|
-2°
|
-2°
|
-2°
|
-2°
|
0°
|
0°
|
0°
|
| 600m |
5°
|
4°
|
4°
|
3°
|
4°
|
4°
|
3°
|
2°
|
| 300m |
6°
|
6°
|
5°
|
5°
|
6°
|
5°
|
5°
|
5°
|
| Glen |
6°
|
7°
|
6°
|
6°
|
8°
|
7°
|
7°
|
6°
|
Additional weather information
Met Office Aberdeen meteorologist's view
Moderate winds at height still bringing a notable windchill. Challenging navigation in hill fog.
Weather
A mainly cloudy day with hill fog. Some patchy light drizzle on southeast upslopes but drier with a few brighter spells further northwest around Lochaber. Outbreaks of light rain arriving from the west in the evening.
Chance of cloud-free hill tops
Less than 10% in the southeast, 40% in the northwest.
Low cloud and visibility
Extensive low cloud bases 600-800m, occasionally down to 400m in the Trossachs. Some breaks in the low cloud layer around Lochaber. Visibility generally good below cloud bases.
Mountain weather information
Weather
Mainly cloudy but dry. Patches of hill fog and some misty low level conditions to start, but brighter and sunnier spells developing through the day.
Chance of cloud-free hill tops
20% rising to 60%.
Maximum wind speed expected
10-15mph on summits and ridges.
Temperature
- At 800m Plus 3 decreasing 0 Celsius later
- Glen Plus 4 Celsius decreasing 1 Celsius later
- Freezing level Above summits decreasing 800m later.
Low cloud and visibility
Areas of low cloud bases 600-800m in the morning but breaks developing through the day. Visibility generally good but perhaps a few kilometres in any misty conditions at first.
Mountain weather information
Thu 25 Dec
Sunrise:
Sunset:
Dry, cold and settled with areas of low cloud and fog patches generally below summit levels. Freezing level 500m.
Fri 26 Dec
Sunrise:
Sunset:
Remaining dry and settled with sunny spells. Some early low level mist and fog. Freezing level 400m.
Sat 27 Dec
Sunrise:
Sunset:
Dry, settled and cold conditions continuing. Variable cloud cover and some low level mist and fog. Freezing level 500m.
Updated at:
Summit specific forecast
Mountain summit forecast map
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Key
Mountain summits
Other points of interest
Cluster of multiple stations
Including Ben Nevis, Glen Coe and the rest of Lochaber, Argyll including the Isles, Loch Lomond, Trossachs and Arran
For snow and avalanche hazard forecasts please visit Scottish Avalanche Information Service