Càrn Aosda weather forecast.

A mixed day on Càrn Aosda: summit wind broadly 15-35 mph, with gusts 40-50 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 1000-1600 m) - clear summits. 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 30-39 mph, so treat the headline as mid-range.

A rough, clagged-in day on Càrn Aosda: summit wind broadly 30-45 mph, with gusts 55-65 mph during the evening (storm-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 500-800 m - expect clag for much of the day, though a brief clearance is possible during the morning. Cloud will be lowest on the SW slopes, down to about 400-700 m; the NE side should be clearer, lifting to around 800-1100 m. 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 34-47 mph, so treat the headline as mid-range.

A rough, clagged-in day on Càrn Aosda: summit wind broadly 30-40 mph, with gusts 45-55 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 500-800 m - expect clag for much of the day, though a brief clearance is possible during the afternoon. Cloud will be lowest on the SW slopes, down to about 400-700 m; the NE side should be clearer, lifting to around 700-1000 m. Some rain is likely, with around 5-10 mm indicated; timing and local totals remain uncertain. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 27-44 mph, so treat the headline as mid-range.

A wild day on Càrn Aosda: summit wind broadly 20-35 mph, with gusts 40-50 mph early in the morning (gale-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 500-1500 m - the top is likely to drift in and out of cloud, with the best chance of a view from the morning into the evening. The cloud base is very changeable today - it could sit much higher or lower than that at times, so read the sky. Cloud will be lowest on the W slopes, down to about 900-1200 m; the E side should be clearer, lifting to around 1100-1400 m. Little or no rain expected. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 22-39 mph, so treat the headline as mid-range. 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.

A fine day on Càrn Aosda: summit wind broadly 5-15 mph, with gusts 10-20 mph early in the morning (a moderate breeze). Any cloud sits well above the tops (base 1400-2100 m) - clear summits. 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 7 to 20 mph; check again nearer the time.

A grey, cloudy day on Càrn Aosda: summit wind broadly 10-20 mph, with gusts 20-30 mph during the evening (fresh and blowy). Cloud base 600-1100 m - the top is likely to drift in and out of cloud, with the best chance of a view from the morning into the afternoon. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 7 to 23 mph; check again nearer the time.

A mixed day on Càrn Aosda: summit wind broadly 20-35 mph, with gusts 35-45 mph during the morning (gale-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 1000-1500 m - the top is likely to drift in and out of cloud, with the best chance of a view from the morning into the evening. Cloud will be lowest on the S slopes, down to about 1300-1600 m; the N side should be clearer, lifting to around 1700-2000 m. 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 14 to 49 mph; check again nearer the time.