Bac an Eich weather forecast.

Cloud-free timing: Cloudy early, clearing later.

A fine day on Bac an Eich: summit wind broadly 10-25 mph, with gusts 25-35 mph during the afternoon (fresh and blowy). Little or no rain expected.

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

A mixed day on Bac an Eich: summit wind broadly 15-30 mph, with gusts 30-40 mph during the evening (strong winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 800–1100 m in the morning, then around 1000–1300 m around midday and 800–1100 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. 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: Around 100% early, falling to around 40% later.

A fine day on Bac an Eich: summit wind broadly 5-25 mph, with gusts 25-35 mph early in the morning (fresh and blowy). Cloud base around 3000–3300 m in the morning, lowering to 1900–2200 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 from early morning into around midday. Little or no rain expected.

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

Cloud-free timing: Best around midday at about 50%; around 0% early and 0% later.

A grey, cloudy day on Bac an Eich: summit wind broadly 5-20 mph, with gusts 15-25 mph during the evening (fresh and blowy). Cloud base around 400–700 m in the morning, then around 900–1200 m around midday and 400–700 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. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain.

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

A grey, cloudy day on Bac an Eich: summit wind broadly 5-20 mph, with gusts 15-25 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 clag for much of the day, though a brief clearance is possible during the afternoon. Some rain is likely, with around 2-5 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 20% later.

A rough, clagged-in day on Bac an Eich: summit wind broadly 0-10 mph, with gusts 5-15 mph early in the morning (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. There could be a spate risk based on forecast rainfall. Burns and unbridged crossings may rise quickly. Most likely from around 00:00 until around 23:00. Cloud base around 200-500 m in the morning, lifting to 400-700 m around midday. Expect clag for much of the day, though a brief clearance is possible during the afternoon. A persistently wet day is possible, with around 10-20 mm indicated; local totals could vary considerably. 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.

A rough, clagged-in day on Bac an Eich: 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 200-500 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 southwestern slopes; the northeastern 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. Low confidence (Summit wind could be roughly 19-52 mph, which changes how difficult exposed walking may feel) - the summit peak could be anywhere from 19 to 52 mph; check again nearer the time.