Ben Avon weather forecast.

Cloud-free timing: Around 0% early, improving to around 83% later.

A mixed day on Ben Avon: summit wind broadly 10-25 mph, with gusts 25-35 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 700-1000 m in the morning, lifting to 1500-1800 m around midday and 1500-1800 m by late afternoon. The top is likely to drift in and out of cloud, with the best chance of a view from around midday into the evening. Little or no rain expected. Cold on top: air temperature broadly 2 to 6°C, feeling around -4 to 0°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 19-26 mph, so treat the headline as mid-range.

A rough, clagged-in day on Ben Avon: summit wind broadly 30-45 mph, with gusts 50-60 mph during the evening (storm-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base mostly around 700-1000 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 southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. Some rain is likely, with up to around 2 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 4 to 8°C, feeling around -4 to 0°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 34-46 mph, so treat the headline as mid-range.

A rough, clagged-in day on Ben Avon: summit wind broadly 35-50 mph, with gusts 60-70 mph around midday (storm-force winds). Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 900-1200 m in the morning, lowering to 700-1000 m around midday and 700-1000 m by late afternoon. 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. Little or no rain expected. Cold on top: air temperature broadly 6 to 10°C, feeling around -2 to 2°C in the wind - wrap up.

Cloud-free timing: Cloudier around midday at about 75%; around 100% early and 100% later.

A mixed day on Ben Avon: summit wind broadly 20-35 mph, with gusts 40-50 mph during the morning (gale-force winds). 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. 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 up to around 2 mm indicated; timing and local totals remain uncertain. Cold on top: air temperature broadly 4 to 8°C, feeling around -2 to 2°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 22-40 mph, so treat the headline as mid-range.

Cloud-free timing: Around 0% early, improving to around 33% later.

A grey, cloudy day on Ben Avon: summit wind broadly 5-25 mph, with gusts 20-30 mph early in the morning (fresh and blowy). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 700-1000 m in the morning, lifting to 1000-1300 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 during the afternoon. Little or no rain expected. Cold on top: air temperature broadly 2 to 6°C, feeling around -4 to 0°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 10 to 27 mph; check again nearer the time. 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 0% early, improving to around 33% later.

A grey, cloudy day on Ben Avon: summit wind broadly 10-30 mph, with gusts 30-40 mph during the evening (strong winds). Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Cloud base around 600-900 m in the morning, 3100-3400 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 midday into the afternoon. Little or no rain expected. Cold on top: air temperature broadly 4 to 8°C, feeling around -2 to 2°C in the wind - wrap up. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 18-34 mph, so treat the headline as mid-range.

Cloud-free timing: Cloudier around midday at about 0%; around 100% early and 83% later.

A wild day on Ben Avon: summit wind broadly 30-45 mph, with gusts 50-60 mph during the morning (gale-force winds). Thunder watch from around midday into overnight: 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 mostly around 1000-1300 m through daylight. The top is likely to drift in and out of cloud, with the best chance of a view during the morning. Cloud is likely to hang lowest on southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. Little or no rain expected. Bright spells with UV up to 5 - sunscreen on exposed skin. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 25 to 55 mph; check again nearer the time. 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.