Sgòr an Lochain Uaine weather forecast.

1,258 m summit forecast for wind, cloud, rain and temperature. Updated from the Thursday 6 August 2026 model run.

Seven-day Sgòr an Lochain Uaine forecast.

Conditions can change quickly with height. Use the day-by-day summit detail below, then check again close to departure.

Medium confidence
Wind27 mph NW Gusts37 mph Feels-4°C Rain0.0 mm Cloud-free summit62% Cloud base1,509 m Freezing level1,880 m Daylight05:22–21:17 · 15.9 h

Cloud-free timing: Around 0% early, improving to around 100% later.

A mixed day on Sgòr an Lochain Uaine: summit wind broadly 10-30 mph, with gusts 30-40 mph early in the morning (strong winds). The ground is likely to be wet after recent rain. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 700-1000 m in the morning, lifting to 1500-1800 m around midday and 1500-1800 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from around midday into the evening. Cloud is likely to hang lowest on northwestern slopes; the southeastern side should see somewhat higher bases and better breaks. Little or no rain expected. Cold on top: air temperature broadly 0 to 4°C, feeling around -6 to -2°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 23-32 mph, so treat the headline as mid-range.

Medium confidence
Wind36 mph SW Gusts50 mph Feels-2°C Rain4.9 mm Cloud-free summit0% Cloud base575 m Freezing level2,070 m Daylight05:24–21:15 · 15.8 h

A rough, clagged-in day on Sgòr an Lochain Uaine: summit wind broadly 30-40 mph, with gusts 45-55 mph during the afternoon (gale-force winds). The ground is likely to be wet after recent rain. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base mostly around 500-800 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 2 to 6°C, feeling around -4 to 0°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 27-44 mph, so treat the headline as mid-range.

Medium confidence
Wind45 mph SW Gusts63 mph Feels-1°C Rain2.4 mm Cloud-free summit0% Cloud base734 m Freezing level2,890 m Daylight05:26–21:13 · 15.8 h

A rough, clagged-in day on Sgòr an Lochain Uaine: summit wind broadly 35-50 mph, with gusts 60-70 mph during the afternoon (storm-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base mostly around 700-1000 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 4 to 8°C, feeling around -2 to 2°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 35-54 mph, so treat the headline as mid-range.

Low confidence
Wind32 mph W Gusts45 mph Feels-2°C Rain4.6 mm Cloud-free summit38% Cloud base978 m Freezing level2,173 m Daylight05:28–21:11 · 15.7 h

Cloud-free timing: Around 0% early, improving to around 33% later.

A rough, clagged-in day on Sgòr an Lochain Uaine: summit wind broadly 20-35 mph, with gusts 40-50 mph early in the morning (gale-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 400-700 m in the morning, 1400-1700 m around midday and 1100-1400 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from midday into the afternoon. Cloud is likely to hang lowest on western slopes; the eastern side should see somewhat higher bases and better breaks. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 2 to 6°C, feeling around -4 to 0°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 22 to 46 mph; check again nearer the time.

Low confidence
Wind16 mph NW Gusts23 mph Feels-2°C Rain3.0 mm Cloud-free summit0% Cloud base1,047 m Freezing level1,901 m Daylight05:30–21:08 · 15.6 h

A grey, cloudy day on Sgòr an Lochain Uaine: summit wind broadly 5-20 mph, with gusts 20-30 mph early in the morning (fresh and blowy). Cloud base around 500-800 m in the morning, lifting to 1000-1300 m around midday and 1000-1300 m by late afternoon. Expect the top to stay in cloud for most or all of daylight, with no dependable break. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 2 to 6°C, feeling around -4 to 0°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 11 to 28 mph; check again nearer the time. Cloud base is the least certain part of this - the models are only moderately agreed, so it could sit a couple of hundred metres either way.

Medium confidence
Wind26 mph S Gusts37 mph Feels0°C Rain0.0 mm Cloud-free summit38% Cloud base1,077 m Freezing level2,963 m Daylight05:32–21:06 · 15.6 h

Cloud-free timing: Around 0% early, improving to around 33% later.

A grey, cloudy day on Sgòr an Lochain Uaine: summit wind broadly 10-30 mph, with gusts 30-40 mph during the evening (strong winds). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 600-900 m in the morning, 2000-2300 m around midday and 1200-1500 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from midday into the afternoon. Little or no rain expected. Cold on top: air temperature broadly 2 to 6°C, feeling around -2 to 2°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 17-32 mph, so treat the headline as mid-range.

Low confidence
Wind38 mph S Gusts53 mph Feels8°C Rain2.2 mm Cloud-free summit44% Cloud base1,029 m Freezing level3,238 m Daylight05:34–21:03 · 15.5 h
Thunder risk: low

from the afternoon into overnight. Leave exposed summits and ridges if thunder develops.

Cloud-free timing: Around 100% early, falling to around 50% later.

A wild day on Sgòr an Lochain Uaine: summit wind broadly 30-45 mph, with gusts 50-60 mph during the morning (gale-force winds). Thunderstorms are possible from the afternoon into overnight. Keep an escape route from exposed ridges and descend if thunder develops. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base mostly around 1000-1300 m through daylight. The top is likely to drift in and out of cloud, with the best chance of a view during the morning. Cloud is likely to hang lowest on southern slopes; the northern side should see somewhat higher bases and better breaks. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 24 to 53 mph; check again nearer the time. Cloud base is the least certain part of this - the models are only moderately agreed, so it could sit a couple of hundred metres either way.

Forecast run: 2026-08-06

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