Geal-charn Mòr weather forecast.

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

A fine day on Geal-charn Mòr: summit wind broadly 10-25 mph, with gusts 20-30 mph early in the morning (fresh and blowy). The ground is likely to be wet after recent rain. Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 500-800 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. 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.

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

A rough, clagged-in day on Geal-charn Mòr: summit wind broadly 25-40 mph, with gusts 45-55 mph during the morning (gale-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 700-1000 m in the morning, 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 around 2-5 mm indicated; timing and local totals remain uncertain.

A rough, clagged-in day on Geal-charn Mòr: summit wind broadly 30-50 mph, with gusts 60-70 mph during the morning (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 clag for much of the day, though a brief clearance is possible during the evening. 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. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 40-55 mph, so treat the headline as mid-range.

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

A mixed day on Geal-charn Mòr: summit wind broadly 15-35 mph, with gusts 35-45 mph early in the morning (gale-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 900-1500 m) - clear summits. 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 up to around 2 mm indicated; timing and local totals remain uncertain. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 24-39 mph, so treat the headline as mid-range.

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

A mixed day on Geal-charn Mòr: summit wind broadly 5-20 mph, with gusts 15-25 mph early in the morning (a moderate breeze). Cloud base around 500-800 m in the morning, lifting to 800-1100 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 late afternoon into the evening. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 8 to 20 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.

Cloud-free timing: Around 50% early, improving to around 83% later.

A fine day on Geal-charn Mòr: summit wind broadly 5-25 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. 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 11 to 24 mph; check again nearer the time.

A wild day on Geal-charn Mòr: summit wind broadly 20-40 mph, with gusts 40-50 mph early in 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. Any cloud sits well above the tops (base 1100-1400 m) - clear summits. Cloud is likely to hang lowest on southern slopes; the northern side should see somewhat higher bases and better breaks. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 23 to 49 mph; check again nearer the time.