Monadh Mòr weather forecast.

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

A grey, cloudy day on Monadh Mòr: summit wind broadly 10-25 mph, with gusts 20-30 mph during the afternoon (fresh and blowy). Cloud base around 700–1000 m in the morning, then around 1000–1300 m around midday and 800–1100 m by late afternoon. Expect clag for much of the day, though a brief clearance is possible 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. Cold on top: air temperature broadly 4 to 8°C, feeling around 0 to 4°C in the wind - wrap up. 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.

Cloud-free timing: Cloudy early, clearing later.

A mixed day on Monadh Mòr: summit wind broadly 20-35 mph, with gusts 35-45 mph around midday (strong 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, then around 1700–2000 m around midday and 1300–1600 m by late afternoon. Summit cloud should lift later, bringing a better chance of clear views. 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. Cold on top: air temperature broadly 6 to 10°C, feeling around 0 to 4°C in the wind - wrap up. Confidence moderate (forecast models agree on the walking impact of the wind) - the summit peak could reasonably be 24-30 mph, so treat the headline as mid-range.

Forecast confidence: Summit wind could be roughly 13-25 mph, which changes how difficult exposed walking may feel.

Cloud-free timing: Around 100% early, falling to around 80% later.

A fine day on Monadh Mòr: summit wind broadly 5-25 mph, with gusts 25-35 mph early in the morning (fresh and blowy). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 1400-2000 m) - clear summits. Little or no rain expected. Confidence moderate (Summit wind could be roughly 13-25 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 13-25 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: Rain is possible, but forecast models differ by about 12 hours on when it arrives.

A grey, cloudy day on Monadh Mòr: summit wind broadly 10-25 mph, with gusts 20-30 mph during the evening (fresh and blowy). Cloud base around 700-1000 m in the morning, lowering 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 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. Confidence moderate (forecast models agree on the walking impact of the wind) - the summit peak could reasonably be 15-28 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.

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

A grey, cloudy day on Monadh Mòr: summit wind broadly 5-20 mph, with gusts 15-25 mph early in the morning (fresh and blowy). Cloud base around 400-700 m in the morning, lifting to 800-1100 m around midday. The top is likely to drift in and out of cloud, with the best chance of a view during the afternoon. 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 grey, cloudy day on Monadh Mòr: summit wind broadly 0-15 mph, with gusts 10-20 mph during the afternoon (a moderate breeze). A meaningful thunderstorm risk is indicated from the morning into the evening. Avoid committing to exposed ridges if storms begin to build. High spate risk based on forecast rainfall. Burns and unbridged crossings may become difficult or impassable. Most likely from around 02:00 until around 00:00 the following day. Cloud base around 400–700 m in the morning, lifting to 800–1100 m around midday and 1300–1600 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 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.

A grey, cloudy day on Monadh Mòr: summit wind broadly 5-30 mph, with gusts 30-40 mph during the evening (strong winds). A meaningful thunderstorm risk is indicated from early morning into the evening. Avoid committing to exposed ridges if storms begin to build. The ground is likely to be wet after recent rain. 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 western slopes; the eastern 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. Cold on top: air temperature broadly 4 to 8°C, feeling around 0 to 4°C in the wind - wrap up. Low confidence (Summit wind could be roughly 15-37 mph, which changes how difficult exposed walking may feel) - the summit peak could be anywhere from 15 to 37 mph; check again nearer the time.