Sgùrr na Ciste Duibhe weather forecast.

Cloud-free timing: Cloudy early, clearing later.

A fine day on Sgùrr na Ciste Duibhe: summit wind broadly 10-25 mph, with gusts 25-35 mph during the evening (fresh and blowy). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 600–900 m in the morning, lifting to 1100–1400 m around midday and 1500–1800 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 0% early, improving to around 60% later.

A wild day on Sgùrr na Ciste Duibhe: summit wind broadly 25-40 mph, with gusts 40-50 mph early in the morning (gale-force winds). Thunder watch from late afternoon 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 1200–1500 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 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 29-36 mph, so treat the headline as mid-range.

Forecast confidence: Rain is possible, but forecast models differ by about 7 hours on when it arrives.

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

A mixed day on Sgùrr na Ciste Duibhe: summit wind broadly 10-30 mph, with gusts 35-45 mph early in the morning (strong winds). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 3000–3300 m in the morning, lowering to 1400–1700 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 early morning into around midday. Little or no rain expected. Confidence moderate (Summit wind could be roughly 18-31 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 18-31 mph, so treat the headline as mid-range.

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

A grey, cloudy day on Sgùrr na Ciste Duibhe: summit wind broadly 5-20 mph, with gusts 15-25 mph during the evening (fresh and blowy). Cloud base around 100–400 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. Little or no rain expected.

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

A grey, cloudy day on Sgùrr na Ciste Duibhe: summit wind broadly 5-15 mph, with gusts 10-20 mph early in the morning (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 grey, cloudy day on Sgùrr na Ciste Duibhe: summit wind broadly 5-15 mph, with gusts 10-20 mph during the afternoon (a moderate breeze). A meaningful thunderstorm risk is indicated from the morning into the afternoon. Avoid committing to exposed ridges if storms begin to build. Cloud base around 100–400 m in the morning, lifting to 600–900 m around midday and 800–1100 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 around 2-5 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: Forecast models disagree on whether meaningful rain reaches the hills during 10:00-16:00.

A rough, clagged-in day on Sgùrr na Ciste Duibhe: summit wind broadly 15-35 mph, with gusts 40-50 mph during the evening (gale-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 100-400 m in the morning, lifting to 400-700 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 western slopes; the eastern 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. 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 21-44 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 21-44 mph, so treat the headline as mid-range.