Cairn Bannoch weather forecast.

1,012 m summit forecast for wind, cloud, rain and temperature. Updated from the Thursday 6 August 2026 model run.

Seven-day Cairn Bannoch forecast.

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

Medium confidence
Wind26 mph NW Gusts36 mph Feels-2°C Rain0.1 mm Cloud-free summit75% Cloud base1,500 m Freezing level1,940 m Daylight05:21–21:15 · 15.9 h

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

A mixed day on Cairn Bannoch: summit wind broadly 10-30 mph, with gusts 30-40 mph early in the morning (strong winds). 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; views may come and go. 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 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 22-30 mph, so treat the headline as mid-range.

High confidence
Wind42 mph SW Gusts58 mph Feels0°C Rain0.6 mm Cloud-free summit62% Cloud base1,023 m Freezing level2,420 m Daylight05:23–21:13 · 15.8 h

Cloud-free timing: Best around midday at about 100%; around 50% early and 33% later.

A wild day on Cairn Bannoch: summit wind broadly 35-45 mph, with gusts 55-65 mph during the morning (storm-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 1000-1300 m in the morning, 1100-1400 m around midday and 900-1200 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from the morning into the afternoon. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. Little or no rain expected. Cold on top: air temperature broadly 4 to 8°C, feeling around -2 to 2°C in the wind - wrap up.

High confidence
Wind56 mph SW Gusts79 mph Feels2°C Rain1.4 mm Cloud-free summit31% Cloud base988 m Freezing level3,120 m Daylight05:25–21:10 · 15.8 h

Cloud-free timing: Around 25% early, falling to around 0% later.

A rough, clagged-in day on Cairn Bannoch: summit wind broadly 40-60 mph, with gusts 75-85 mph around midday (storm-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 900-1200 m in the morning, lowering to 1000-1300 m around midday and 700-1000 m by late afternoon. 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 southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 6 to 10°C, feeling around 0 to 4°C in the wind - wrap up.

Medium confidence
Wind26 mph W Gusts37 mph Feels2°C Rain0.9 mm Cloud-free summit100% Cloud base1,637 m Freezing level2,149 m Daylight05:27–21:08 · 15.7 h

A mixed day on Cairn Bannoch: summit wind broadly 15-30 mph, with gusts 30-40 mph early in the morning (strong winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 1400-2000 m) - clear summits. Cloud is likely to hang lowest on western slopes; the eastern side should see somewhat higher bases and better breaks. Little or no rain expected. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 19-32 mph, so treat the headline as mid-range.

Low confidence
Wind17 mph NW Gusts24 mph Feels-0°C Rain0.5 mm Cloud-free summit62% Cloud base1,031 m Freezing level1,900 m Daylight05:29–21:06 · 15.6 h

Cloud-free timing: Around 25% early, improving to around 50% later.

A mixed day on Cairn Bannoch: summit wind broadly 5-20 mph, with gusts 20-30 mph early in the morning (fresh and blowy). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 700-1000 m in the morning, lifting to 1000-1300 m around midday and 1000-1300 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from the morning into the evening. 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. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 9 to 26 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
Wind25 mph S Gusts35 mph Feels1°C Rain0.0 mm Cloud-free summit56% Cloud base1,079 m Freezing level2,865 m Daylight05:31–21:03 · 15.5 h

Cloud-free timing: Around 0% early, improving to around 67% later.

A mixed day on Cairn Bannoch: 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, lifting to 1500-1800 m around midday and 2000-2300 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from the morning into the evening. Little or no rain expected. Cold on top: air temperature broadly 4 to 8°C, feeling around 0 to 4°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 16-30 mph, so treat the headline as mid-range.

Low confidence
Wind37 mph SW Gusts51 mph Feels12°C Rain0.0 mm Cloud-free summit100% Cloud base0 m Freezing level3,318 m Daylight05:33–21:01 · 15.5 h
Thunder risk: slight

from around midday into overnight. Leave exposed summits and ridges if thunder develops.

A wild day on Cairn Bannoch: summit wind broadly 25-40 mph, with gusts 45-55 mph during the morning (gale-force winds). Thunder watch from around midday into overnight: a small but credible risk is present. Watch for growing clouds and leave exposed tops if thunder develops. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Summits should stay clear of cloud - good visibility on top. Little or no rain expected. Bright spells with UV up to 5 - sunscreen on exposed skin. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 22 to 59 mph; check again nearer the time.

Forecast run: 2026-08-06

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