Breabag weather forecast.

815 m summit in Northwest Highlands. Seven-day wind, cloud, rain and temperature forecast, updated 26 August 2026 at 15:32 UTC.

At a glance

Today on Breabag.

Breabag on Wednesday 26 August 2026: summit wind around 27 mph SE, gusting 38 mph; modelled cloud-free summit for 14% of daylight; feels like 5°C; 0.0 mm rain.

High confidenceHow the forecast works

Seven-day Breabag forecast.

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

High confidence
Wind27 mph SE Gusts38 mph Feels5°C Rain0.0 mm Cloud-free summit14% Cloud base693 m Freezing level3,150 m Daylight06:05–20:36 · 14.5 h

Cloud-free timing: Cloudier around midday at about 0%; around 33% early and 20% later.

A grey, cloudy day on Breabag: summit wind broadly 20-30 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 around 600–900 m in the morning, then around 800–1100 m around midday and 500–800 m by late afternoon. Expect clag for much of the day, though a brief clearance is possible early in the morning. Little or no rain expected.

High confidence
Wind26 mph SE Gusts36 mph Feels11°C Rain0.0 mm Cloud-free summit57% Cloud base566 m Freezing level2,950 m Daylight06:07–20:33 · 14.4 h
Thunder risk: slight

from around midday into the evening. Leave exposed summits and ridges if thunder develops.

Cloud-free timing: Best around midday at about 100%; around 33% early and 20% later.

A mixed day on Breabag: summit wind broadly 15-30 mph, with gusts 30-40 mph during the morning (strong winds). Thunder watch from around midday into the evening: 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. Cloud base around 500–800 m in the morning, then around 0–300 m around midday and 500–800 m by late afternoon. 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. Confidence moderate (forecast models agree on the walking impact of the wind) - the summit peak could reasonably be 24-27 mph, so treat the headline as mid-range.

Medium confidence
Wind24 mph NE Gusts34 mph Feels8°C Rain3.4 mm Cloud-free summit0% Cloud base430 m Freezing level2,900 m Daylight06:09–20:30 · 14.3 h

Forecast confidence: Rain is possible, but forecast models differ by about 8 hours on when it arrives.

A grey, cloudy day on Breabag: summit wind broadly 15-30 mph, with gusts 30-40 mph early in the morning (strong winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base mostly around 400–700 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 northeastern slopes; the southwestern 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 (forecast models agree on the walking impact of the wind) - the summit peak could reasonably be 19-31 mph, so treat the headline as mid-range.

Medium confidence
Wind12 mph NW Gusts17 mph Feels6°C Rain0.6 mm Cloud-free summit0% Cloud base439 m Freezing level2,550 m Daylight06:11–20:28 · 14.3 h

Forecast confidence: Rain is possible, but forecast models differ by about 16 hours on when it arrives.

A grey, cloudy day on Breabag: summit wind broadly 5-15 mph, with gusts 10-20 mph during the evening (a moderate breeze). Cloud base mostly around 400–700 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. Little or no rain expected. 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.

Medium confidence
Wind12 mph S Gusts17 mph Feels6°C Rain8.1 mm Cloud-free summit0% Cloud base437 m Freezing level2,485 m Daylight06:14–20:25 · 14.2 h

Forecast confidence: A low thunderstorm risk remains difficult to time precisely.

Thunder risk: low

from around midday into the evening. Leave exposed summits and ridges if thunder develops.

A rough, clagged-in day on Breabag: summit wind broadly 5-15 mph, with gusts 10-20 mph during the afternoon (a moderate breeze). Thunderstorms are possible from around midday into the evening. Keep an escape route from exposed ridges and descend if thunder develops. Cloud base mostly around 400–700 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. A persistently wet day is possible, with around 5-10 mm indicated; local totals could vary considerably.

Medium confidence
Wind19 mph SE Gusts27 mph Feels5°C Rain9.2 mm Cloud-free summit0% Cloud base370 m Freezing level2,478 m Daylight06:16–20:22 · 14.1 h

Forecast confidence: Thunderstorm timing is inherently uncertain and may shift by several hours.

Thunder risk: moderate

from early morning into the evening. Leave exposed summits and ridges if thunder develops.

A rough, clagged-in day on Breabag: summit wind broadly 5-25 mph, with gusts 20-30 mph early in the morning (fresh and blowy). A meaningful thunderstorm risk is indicated from early morning into the evening. Avoid committing to exposed ridges if storms begin to build. Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base mostly around 300–600 m through daylight. Expect the top to stay in cloud for most or all of daylight, with no dependable break. A persistently wet day is possible, with around 5-10 mm indicated; local totals could vary considerably. Confidence moderate (Summit wind could be roughly 10-30 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 10-30 mph, so treat the headline as mid-range.

Medium confidence
Wind28 mph N Gusts39 mph Feels1°C Rain4.3 mm Cloud-free summit21% Cloud base483 m Freezing level1,872 m Daylight06:18–20:19 · 14.0 h

Forecast confidence: Rain is possible, but forecast models differ by about 14 hours on when it arrives.

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 60% later.

A grey, cloudy day on Breabag: summit wind broadly 20-35 mph, with gusts 35-45 mph during the morning (strong winds). 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 17:00. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 400–700 m through the morning, lifting to 900–1200 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view during the evening. Cloud is likely to hang lowest on northern slopes; the southern 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. Cold on top: air temperature broadly 4 to 8°C, feeling around -2 to 2°C in the wind - wrap up. Confidence moderate (Summit wind could be roughly 19-33 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 19-33 mph, so treat the headline as mid-range.

Forecast run: 2026-08-26

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Mountain weather can differ sharply from conditions in the valley. Check official warnings, carry appropriate navigation and clothing, and be ready to change the plan. Read how Mountain Weather forecasts are produced and where their limits lie.