Sgòrr na Diollaid weather forecast.

Cloud-free timing: Cloudy early, clearing later.

A mixed day on Sgòrr na Diollaid: summit wind broadly 10-25 mph, with gusts 20-30 mph during the afternoon (fresh and blowy). 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. Cloud base around 800–1100 m in the morning, then around 1000–1300 m around midday and 900–1200 m by late afternoon. Summit cloud should lift later, bringing a better chance of clear views. Little or no rain expected.

Cloud-free timing: Around 100% early, falling to around 40% later.

A fine day on Sgòrr na Diollaid: summit wind broadly 5-20 mph, with gusts 15-25 mph during the morning (a moderate breeze). 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. Cloud base around 3000–3300 m in the morning, lowering to 1400–1700 m around midday and 700–1000 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view during the morning. Little or no rain expected.

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

A grey, cloudy day on Sgòrr na Diollaid: summit wind broadly 10-25 mph, with gusts 20-30 mph during the evening (fresh and blowy). A meaningful thunderstorm risk is indicated from around midday into the evening. Avoid committing to exposed ridges if storms begin to build. Cloud base around 400-700 m in the morning, lifting to 600-900 m around midday. Expect the top to stay in cloud for most or all of daylight, with no dependable break. 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.

Forecast confidence: Rain is possible, but forecast models differ by about 13 hours on when it arrives.

A grey, cloudy day on Sgòrr na Diollaid: summit wind broadly 5-20 mph, with gusts 15-25 mph during the evening (a moderate breeze). Cloud base around 400–700 m in the morning, then around 600–900 m around midday and 400–700 m by late afternoon. Expect the top to stay in cloud for most or all of daylight, with no dependable break. 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.

A rough, clagged-in day on Sgòrr na Diollaid: summit wind broadly 0-15 mph, with gusts 5-15 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 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 10-20 mm indicated; local totals could vary considerably. Treat the cloud base with caution - the models disagree on humidity, so it could be well above or below the figure given.

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

Cloud-free timing: Around 0% early, improving to around 40% later.

A grey, cloudy day on Sgòrr na Diollaid: summit wind broadly 10-35 mph, with gusts 40-50 mph during the evening (gale-force winds). Thunderstorms are possible from early morning into the evening. Keep an escape route from exposed ridges and descend if thunder develops. The ground is likely to be wet after recent rain. Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 300–600 m in the morning, lifting to 400–700 m around midday and 600–900 m by late afternoon. Expect clag for much of the day, though a brief clearance is possible during the evening. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Low confidence (Summit wind could be roughly 22-57 mph, which changes how difficult exposed walking may feel) - the summit peak could be anywhere from 22 to 57 mph; check again nearer the time.