Gairbeinn weather forecast.

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

Seven-day Gairbeinn forecast.

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

High confidence
Wind18 mph W Gusts25 mph Feels1°C Rain0.3 mm Cloud-free summit69% Cloud base1,047 m Freezing level1,910 m Daylight05:25–21:21 · 15.9 h
Spate watch

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

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

A mixed day on Gairbeinn: summit wind broadly 10-25 mph, with gusts 20-30 mph during the evening (fresh and blowy). The ground is likely to be wet after recent rain. There could be a spate risk based on forecast rainfall. Burns and unbridged crossings may rise quickly. Most likely from around 00:00 until around 10:00. Cloud base around 500-800 m in the morning, lifting to 1000-1300 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 around midday into the evening. 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. Cold on top: air temperature broadly 4 to 8°C, feeling around -2 to 2°C in the wind - wrap up.

Medium confidence
Wind40 mph SW Gusts56 mph Feels1°C Rain14.0 mm Cloud-free summit0% Cloud base571 m Freezing level2,120 m Daylight05:27–21:18 · 15.8 h
Spate watch

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

A rough, clagged-in day on Gairbeinn: summit wind broadly 30-45 mph, with gusts 50-60 mph during the evening (storm-force winds). The ground is likely to be wet after recent rain. There could be a spate risk based on forecast rainfall. Burns and unbridged crossings may rise quickly. Most likely from around 02:00 until around 02:00 the following day. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base mostly around 500-800 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. 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 0 to 4°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 32-50 mph, so treat the headline as mid-range.

Medium confidence
Wind46 mph SW Gusts64 mph Feels3°C Rain4.1 mm Cloud-free summit0% Cloud base526 m Freezing level2,860 m Daylight05:29–21:16 · 15.8 h

A rough, clagged-in day on Gairbeinn: summit wind broadly 35-50 mph, with gusts 60-70 mph during the afternoon (storm-force winds). The ground is likely to be wet after recent rain. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base mostly around 500-800 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. 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. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 32-55 mph, so treat the headline as mid-range.

Medium confidence
Wind30 mph W Gusts41 mph Feels1°C Rain5.2 mm Cloud-free summit56% Cloud base958 m Freezing level2,108 m Daylight05:31–21:14 · 15.7 h
Spate watch

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

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

A mixed day on Gairbeinn: summit wind broadly 20-35 mph, with gusts 35-45 mph early in the morning (gale-force winds). The ground is likely to be wet after recent rain. There could be a spate risk based on forecast rainfall. Burns and unbridged crossings may rise quickly. Most likely from around 00:00 until around 20:00. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 500-800 m in the morning, lifting to 900-1200 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 around midday into the evening. 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 around 5-10 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. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 22-38 mph, so treat the headline as mid-range.

Low confidence
Wind11 mph NW Gusts15 mph Feels2°C Rain1.4 mm Cloud-free summit44% Cloud base1,048 m Freezing level1,891 m Daylight05:33–21:11 · 15.6 h

Cloud-free timing: Around 0% early, improving to around 83% later.

A mixed day on Gairbeinn: summit wind broadly 0-15 mph, with gusts 10-20 mph early in the morning (a moderate breeze). The ground is likely to be wet after recent rain. 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. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 6 to 15 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
Wind19 mph S Gusts27 mph Feels5°C Rain0.0 mm Cloud-free summit50% Cloud base998 m Freezing level2,994 m Daylight05:36–21:09 · 15.6 h

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

A mixed day on Gairbeinn: summit wind broadly 5-25 mph, with gusts 20-30 mph during the evening (fresh and blowy). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 600-900 m in the morning, 2000-2300 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 around midday into the evening. Little or no rain expected. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 10 to 25 mph; check again nearer the time.

Low confidence
Wind34 mph S Gusts47 mph Feels11°C Rain9.3 mm Cloud-free summit44% Cloud base791 m Freezing level3,219 m Daylight05:38–21:07 · 15.5 h
Thunder risk: moderate

from the afternoon into overnight. Leave exposed summits and ridges if thunder develops.

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

A wild day on Gairbeinn: summit wind broadly 20-40 mph, with gusts 40-50 mph around midday (gale-force winds). A meaningful thunderstorm risk is indicated from the afternoon into overnight. Avoid committing to exposed ridges if storms begin to build. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 1000-1300 m around midday, lowering to 700-1000 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from early morning into around midday. Cloud is likely to hang lowest on southern slopes; the northern side should see somewhat higher bases and better breaks. A persistently wet day is possible, with around 5-10 mm indicated; local totals could vary considerably. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 18 to 61 mph; check again nearer the time.

Forecast run: 2026-08-06

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