Càrn Ealasaid weather forecast.

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

Cloud-free timing: Around 0% early, improving to around 20% later.

A grey, cloudy day on Càrn Ealasaid: summit wind broadly 10-25 mph, with gusts 20-30 mph during the afternoon (fresh and blowy). Cloud base around 500–800 m in the morning, then around 700–1000 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 during the afternoon. Cloud is likely to hang lowest on southeastern slopes; the northwestern side should see somewhat higher bases and better breaks. Little or no rain expected.

Forecast confidence: Rain is possible, but forecast models differ by about 6 hours on when it arrives.

A grey, cloudy day on Càrn Ealasaid: summit wind broadly 10-20 mph, with gusts 15-25 mph during the afternoon (fresh and blowy). 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 northern slopes; the southern 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.

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

Cloud-free timing: Cloudy early, clearing later.

A mixed day on Càrn Ealasaid: summit wind broadly 5-20 mph, with gusts 15-25 mph during the morning (fresh and blowy). Thunderstorms are possible from around midday 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 1000–1300 m around midday and 1300–1600 m by late afternoon. Summit cloud should lift later, bringing a better chance of clear views. Little or no rain expected.

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

Cloud-free timing: Cloudier around midday at about 0%; around 67% early and 60% later.

A mixed day on Càrn Ealasaid: summit wind broadly 5-20 mph, with gusts 15-25 mph during the afternoon (a moderate breeze). Thunderstorms are a significant hazard from the morning into the evening. Exposed summits and ridges are a poor choice while storms are nearby. Cloud base around 400–700 m through the morning, lifting to 800–1100 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view during the afternoon. Cloud is likely to hang lowest on southern slopes; the northern 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. 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: Thunderstorm timing is inherently uncertain and may shift by several hours.

Cloud-free timing: Cloudy early, clearing later.

A mixed day on Càrn Ealasaid: summit wind broadly 5-25 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. Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 500–800 m in the morning, then around 1000–1300 m around midday and 800–1100 m by late afternoon. Summit cloud should lift later, bringing a better chance of clear views. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain. Confidence moderate (Summit wind could be roughly 11-35 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 11-35 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: Clear early, clouding up later.

A rough, clagged-in day on Càrn Ealasaid: summit wind broadly 25-40 mph, with gusts 45-55 mph early in the morning (gale-force winds). Thunderstorms are possible from early morning into the evening. Keep an escape route from exposed ridges and descend if thunder develops. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 800–1100 m in the morning, lowering to 400–700 m around midday and 500–800 m by late afternoon. The summit should be clear early, with cloud building around midday. Cloud is likely to hang lowest on northwestern slopes; the southeastern 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 4 to 8°C, feeling around -4 to 0°C in the wind - wrap up. Confidence moderate (Summit wind could be roughly 27-44 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 27-44 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.