Tom a' Chòinich weather forecast.

A grey, cloudy day on Tom a' Chòinich: summit wind broadly 15-35 mph, with gusts 35-45 mph during the evening (strong winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 700-1600 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. 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. Cold on top: air temperature broadly 2 to 6°C, feeling around -4 to 0°C in the wind - wrap up.

A rough, clagged-in day on Tom a' Chòinich: summit wind broadly 40-55 mph, with gusts 65-75 mph during the afternoon (storm-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base 500-800 m - expect the top to stay in cloud for most or all of the day, with no dependable break. 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. A persistently wet day is possible, with around 20-40 mm indicated; local totals could vary considerably. Cold on top: air temperature broadly 4 to 8°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 31 to 63 mph; check again nearer the time.

A rough, clagged-in day on Tom a' Chòinich: summit wind broadly 45-60 mph, with gusts 75-85 mph early in the morning (storm-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base 500-800 m - expect the top to stay in cloud for most or all of the day, with no dependable break. Cloud will be lowest on the SW slopes, down to about 300-600 m; the NE side should be clearer, lifting to around 800-1100 m. A persistently wet day is possible, with around 10-20 mm indicated; local totals could vary considerably. Cold on top: air temperature broadly 6 to 10°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 34 to 77 mph; check again nearer the time.

A rough, clagged-in day on Tom a' Chòinich: summit wind broadly 25-50 mph, with gusts 55-65 mph early in the morning (storm-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base 700-1000 m - expect clag for much of the day, though a brief clearance is possible during the morning. Cloud will be lowest on the W slopes, down to about 800-1100 m; the E side should be clearer, lifting to around 1100-1400 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 33-59 mph, so treat the headline as mid-range.

A mixed day on Tom a' Chòinich: summit wind broadly 5-20 mph, with gusts 15-25 mph early in the morning (fresh and blowy). Cloud base 700-1700 m - the top is likely to drift in and out of cloud, with the best chance of a view from around midday 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. 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. 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 Tom a' Chòinich: summit wind broadly 15-30 mph, with gusts 35-45 mph during the evening (strong winds). Much calmer lower down - generally 0-5 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 1500-3200 m) - clear summits. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 13 to 49 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.

A rough, clagged-in day on Tom a' Chòinich: summit wind broadly 30-50 mph, with gusts 60-70 mph around midday (storm-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 700-1000 m - expect clag for much of the day, though a brief clearance is possible during the afternoon. Cloud will be lowest on the S slopes, down to about 600-900 m; the N side should be clearer, lifting to around 1000-1300 m. Some rain is likely, with around 5-10 mm indicated; timing and local totals remain uncertain. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 22 to 86 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.