Cìr Mhòr weather forecast.

Cloud-free timing: Around 0% early, improving to around 60% later.

A mixed day on Cìr Mhòr: summit wind broadly 20-35 mph, with gusts 35-45 mph during the morning (gale-force winds). 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 1000-1300 m around midday. The top is likely to drift in and out of cloud, with the best chance of a view from midday into the afternoon. Cloud is likely to hang lowest on eastern slopes; the western 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.

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

Cloud-free timing: Around 0% early, improving to around 80% later.

A grey, cloudy day on Cìr Mhòr: summit wind broadly 5-20 mph, with gusts 15-25 mph early in the morning (fresh and blowy). Thunderstorms are possible from late afternoon into the evening. Keep an escape route from exposed ridges and descend if thunder develops. Cloud base around 500–800 m in the morning, lifting to 700–1000 m around midday and 1400–1700 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. Little or no rain expected.

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

Cloud-free timing: Cloudy early, clearing later.

A fine day on Cìr Mhòr: summit wind broadly 10-25 mph, with gusts 25-35 mph during the evening (fresh and blowy). A meaningful thunderstorm risk is indicated from the morning into the evening. Avoid committing to exposed ridges if storms begin to build. Little or no rain expected. Bright spells with UV up to 5 - sunscreen on exposed skin. Confidence moderate (forecast models agree on the walking impact of the wind) - the summit peak could reasonably be 15-26 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.

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

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

A mixed day on Cìr Mhòr: summit wind broadly 5-15 mph, with gusts 10-20 mph early in the morning (a moderate breeze). Thunderstorms are possible from the morning into the evening. Keep an escape route from exposed ridges and descend if thunder develops. Cloud base around 400–700 m through the morning, lifting to 1800–2100 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.

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

Cloud-free timing: Around 0% early, improving to around 60% later.

A mixed day on Cìr Mhòr: summit wind broadly 5-15 mph, with gusts 10-20 mph during the evening (a moderate breeze). A meaningful thunderstorm risk is indicated from early morning into the evening. Avoid committing to exposed ridges if storms begin to build. Cloud base around 400–700 m in the morning, lifting to 800–1100 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 midday into the afternoon. Little or no rain expected.

Forecast confidence: Forecast models disagree on whether meaningful rain reaches the hills during 10:00-16:00.

Cloud-free timing: Cloudy early, clearing later.

A mixed day on Cìr Mhòr: summit wind broadly 15-35 mph, with gusts 35-45 mph during the evening (gale-force winds). Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 400-700 m in the morning, lifting to 800-1100 m around midday. Summit cloud should lift later, bringing a better chance of clear views. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain. Confidence moderate (Summit wind could be roughly 24-39 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 24-39 mph, so treat the headline as mid-range.