Beinn Lair weather forecast.

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

Seven-day Beinn Lair forecast.

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

High confidence
Wind32 mph W Gusts45 mph Feels-1°C Rain2.3 mm Cloud-free summit12% Cloud base593 m Freezing level1,880 m Daylight05:25–21:27 · 16.0 h

A rough, clagged-in day on Beinn Lair: summit wind broadly 15-35 mph, with gusts 40-50 mph during the evening (gale-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 500-900 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 500-800 m; the E side should be clearer, lifting to around 700-1000 m. 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.

Medium confidence
Wind59 mph SW Gusts83 mph Feels-0°C Rain17.4 mm Cloud-free summit0% Cloud base407 m Freezing level2,060 m Daylight05:28–21:25 · 15.9 h

A rough, clagged-in day on Beinn Lair: summit wind broadly 50-65 mph, with gusts 80-90 mph during the evening (storm-force winds). Much calmer lower down - generally 15-25 mph in the valley, rising towards the tops. Cloud base 400-700 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 200-500 m; the NE side should be clearer, lifting to around 700-1000 m. A persistently wet day is possible, with around 10-20 mm indicated; local totals could vary considerably. 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 44-70 mph, so treat the headline as mid-range.

Medium confidence
Wind53 mph SW Gusts74 mph Feels3°C Rain38.8 mm Cloud-free summit0% Cloud base508 m Freezing level2,530 m Daylight05:30–21:23 · 15.9 h

A rough, clagged-in day on Beinn Lair: summit wind broadly 40-60 mph, with gusts 70-80 mph during the evening (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 20-40 mm indicated; local totals could vary considerably. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 40-67 mph, so treat the headline as mid-range.

Low confidence
Wind41 mph W Gusts57 mph Feels1°C Rain4.0 mm Cloud-free summit44% Cloud base754 m Freezing level1,850 m Daylight05:32–21:20 · 15.8 h

A wild day on Beinn Lair: summit wind broadly 25-45 mph, with gusts 50-60 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 400-1000 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. Cloud will be lowest on the W slopes, down to about 600-900 m; the E side should be clearer, lifting to around 900-1200 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. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 24 to 53 mph; check again nearer the time.

Low confidence
Wind13 mph NW Gusts18 mph Feels2°C Rain1.4 mm Cloud-free summit44% Cloud base932 m Freezing level1,650 m Daylight05:34–21:18 · 15.7 h

A mixed day on Beinn Lair: summit wind broadly 5-20 mph, with gusts 15-25 mph early in the morning (a moderate breeze). Cloud base 500-1100 m - the top is likely to drift in and out of cloud, with the best chance of a view from late afternoon into the evening. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain. 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 6 to 23 mph; check again nearer the time.

Low confidence
Wind32 mph S Gusts45 mph Feels7°C Rain0.0 mm Cloud-free summit75% Cloud base2,032 m Freezing level2,300 m Daylight05:36–21:15 · 15.7 h

A wild day on Beinn Lair: summit wind broadly 10-35 mph, with gusts 40-50 mph during the evening (gale-force winds). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base 700-2100 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. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 16 to 57 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.

Low confidence
Wind43 mph S Gusts60 mph Feels6°C Rain2.0 mm Cloud-free summit56% Cloud base1,010 m Freezing level2,500 m Daylight05:38–21:13 · 15.6 h

A wild day on Beinn Lair: summit wind broadly 35-50 mph, with gusts 55-65 mph around midday (storm-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base 700-1500 m - the top is likely to drift in and out of cloud, with the best chance of a view from late afternoon 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 S slopes, down to about 800-1100 m; the N side should be clearer, lifting to around 1200-1500 m. 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 18 to 81 mph; check again nearer the time.

Forecast run: 2026-08-06

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