Southwest Highlands Mountain weather forecast table
Confidence
Generally high for Tuesday and Wednesday, but low for chance of rain and snow reaching south of the area early Wednesday. High for strong winds on Thursday, but low for timing of rain clearing. High confidence for a change to colder showery conditions Friday and Saturday, but low for details.
This evening forecast
Southerly severe gales across the summits with heavy rain and extensive low cloud. Rain easing at the start of the night. Freezing level well above the summits.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Severe Chill Effect
Poor Visibility
Mountain weather forecast
Early morning rain clearing to drier brighter conditions. A cold wind chill.
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
Weather (at 800m) |
||||||||
Chance of precipitation (at 800m) |
80% | 80% | 90% | 40% | 20% | 10% | 10% | 10% |
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
1300m |
S
45
|
SW
42
|
SW
32
|
W
29
|
W
23
|
W
18
|
W
11
|
NW
6
|
900m |
S
31
|
SW
31
|
SW
24
|
W
21
|
W
20
|
W
16
|
W
9
|
NW
4
|
600m |
S
41
|
SW
37
|
SW
26
|
W
22
|
W
19
|
W
15
|
W
8
|
W
3
|
300m |
S
23
|
SW
22
|
SW
14
|
W
12
|
W
13
|
W
11
|
W
5
|
SW
2
|
Glen |
S
15
|
SW
18
|
SW
12
|
W
13
|
W
12
|
W
10
|
W
5
|
NW
3
|
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
1300m | 58 | 55 | 42 | 38 | 32 | 26 | 15 | 7 |
900m | 42 | 43 | 34 | 30 | 29 | 24 | 13 | 6 |
600m | 53 | 49 | 36 | 31 | 27 | 22 | 12 | 5 |
300m | 35 | 36 | 23 | 20 | 21 | 18 | 10 | 4 |
Glen | 32 | 36 | 26 | 26 | 23 | 19 | 11 | 5 |
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
1300m |
2°
|
2°
|
0°
|
-1°
|
-2°
|
-2°
|
-3°
|
-3°
|
900m |
4°
|
4°
|
3°
|
2°
|
1°
|
1°
|
0°
|
-1°
|
600m |
7°
|
6°
|
5°
|
4°
|
4°
|
4°
|
3°
|
2°
|
300m |
8°
|
8°
|
7°
|
6°
|
6°
|
6°
|
5°
|
4°
|
Glen |
10°
|
10°
|
9°
|
8°
|
9°
|
9°
|
7°
|
6°
|
Freezing Level |
1,700m
|
1,500m
|
1,300m
|
1,000m
|
800m
|
700m
|
700m
|
600m
|
00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
---|---|---|---|---|---|---|---|---|
1300m |
-6°
|
-6°
|
-8°
|
-9°
|
-10°
|
-10°
|
-8°
|
-7°
|
900m |
-2°
|
-2°
|
-4°
|
-4°
|
-5°
|
-4°
|
-4°
|
-3°
|
600m |
0°
|
0°
|
-1°
|
-2°
|
-2°
|
-1°
|
-1°
|
0°
|
300m |
4°
|
4°
|
3°
|
3°
|
3°
|
3°
|
3°
|
3°
|
Glen |
7°
|
6°
|
6°
|
5°
|
6°
|
6°
|
5°
|
5°
|
Additional weather information
Met Office Aberdeen meteorologist's view
Improving conditions, but note the lowering freezing levels with remaining snow pack likely to become hard and icy.
Weather
Rain and southerly summit gales in the early hours, turning to snow on the higher munro tops around dawn as winds turn westerly and ease slightly. Rain and summit snow turn to scattered showers through the morning with bright spells developing from the north. A dry bright, cold afternoon. Perhaps a few showers from dusk as cloud thickens, most likely over Lochaber, then a dry but cloudy start to the night.
Chance of cloud-free hill tops
Nil becoming 40% through the morning. 80% in the afternoon.
Low cloud and visibility
Very poor visibility in rain and extensive cloud above 400-500m early hours and to start the day. Visibility improving from the north from mid-morning as cloud becomes more broken and lifts to around munro level, then above the summits by midday. Occasional cloud down to 700m in the evening, mainly across Lochaber.
Mountain weather information
Weather
Cloudy through the early hours and to start the day, mainly dry, but a chance of some rain, snow above 700m, across Arran and perhaps southern Argyll and the Trossachs. Then a dry bright day with sunny spells. High cloud increases in the evening with southwest winds increasing.
Chance of cloud-free hill tops
70% early morning, becoming 90% or more.
Maximum wind speed expected
North becoming West 5 to 10 mph. Becoming southwest 20 gusting 30 mph late evening.
Temperature
- At 800m Plus 1 Celsius, rising to 3 Celsius.
- Glen Plus 4 Celsius, rising to 9 Celsius.
- Freezing level Around 800m, perhaps rising to 1000m.
Low cloud and visibility
Very good visibility, a chance of some patchy cloud above 400-600m around dawn, mainly over Arran and Argyll. Otherwise summits likely to be cloud free.
Mountain weather information
Thu 21 Mar
Cloudy with southwesterly severe gales and heavy rain, clearing to blustery showers later in the day. Freezing level 1000m, quickly rising well above the summits. Falling to 1000m again evening.
Fri 22 Mar
West or northwest gales with frequent showers, falling as snow to increasingly lower levels, and giving a risk of thunder. Showers becoming heavier later in the day. Freezing level 800m falling to 600m.
Sat 23 Mar
Cold, with strong north or northwest winds. Heavy wintry showers at first, most likely turning dry with winds easing later.
Summit specific forecast
Mountain summit forecast map
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