Lurg Mhòr weather forecast.

986 m summit forecast for wind, cloud, rain and temperature. Updated from the Thursday 6 August 2026 model run.

Seven-day Lurg Mhòr forecast.

Conditions can change quickly with height. Use the day-by-day summit detail below, then check again close to departure.

High confidence
Wind23 mph W Gusts32 mph Feels-2°C Rain0.6 mm Cloud-free summit50% Cloud base818 m Freezing level2,340 m Daylight05:26–21:25 · 16.0 h

Cloud-free timing: Around 0% early, improving to around 67% later.

A mixed day on Lurg Mhòr: summit wind broadly 10-30 mph, with gusts 25-35 mph during the evening (strong winds). The ground is likely to be wet after recent rain. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 500-800 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 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.

Medium confidence
Wind45 mph SW Gusts63 mph Feels-0°C Rain35.2 mm Cloud-free summit0% Cloud base486 m Freezing level2,110 m Daylight05:28–21:23 · 15.9 h
Severe spate risk

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

A rough, clagged-in day on Lurg Mhòr: summit wind broadly 40-50 mph, with gusts 60-70 mph during the evening (storm-force winds). The ground is likely to be wet after recent rain. Severe spate risk based on forecast rainfall. Burns and unbridged crossings may become unsafe or impassable. Most likely from around 00:00 until around 06:00 the following day. Much calmer lower down - generally 15-25 mph in the valley, rising towards the tops. 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 southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. A persistently wet day is possible, with around 20-40 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 (ensemble members show a moderate spread) - the summit peak could reasonably be 30-55 mph, so treat the headline as mid-range.

Low confidence
Wind53 mph SW Gusts74 mph Feels1°C Rain25.0 mm Cloud-free summit0% Cloud base486 m Freezing level2,680 m Daylight05:30–21:20 · 15.8 h
Severe spate risk

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

A rough, clagged-in day on Lurg Mhòr: summit wind broadly 45-60 mph, with gusts 70-80 mph during the evening (storm-force winds). The ground is likely to be saturated after recent rain. Expect boggy paths and rapid runoff if more rain arrives. Severe spate risk based on forecast rainfall. Burns and unbridged crossings may become unsafe or impassable. Most likely from around 03:00 until around 06:00 the following day. Much calmer lower down - generally 15-25 mph in the valley, rising towards the tops. 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 southwestern slopes; the northeastern side should see somewhat higher bases and better breaks. A persistently wet day is possible, with around 20-40 mm indicated; local totals could vary considerably. Cold on top: air temperature broadly 6 to 10°C, feeling around -2 to 2°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 27 to 67 mph; check again nearer the time.

Low confidence
Wind32 mph W Gusts45 mph Feels-1°C Rain7.5 mm Cloud-free summit6% Cloud base725 m Freezing level1,814 m Daylight05:33–21:18 · 15.8 h
Spate watch

Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.

A rough, clagged-in day on Lurg Mhòr: summit wind broadly 20-35 mph, with gusts 40-50 mph early in the morning (gale-force winds). The ground is likely to be saturated after recent rain. Expect boggy paths and rapid runoff if more rain arrives. 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. Much calmer lower down - generally 10-20 mph in the valley, rising towards the tops. Cloud base around 400-700 m in the morning, lifting to 700-1000 m around midday and 700-1000 m by late afternoon. Expect clag for much of the day, though a brief clearance is possible during the evening. 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 -4 to 0°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 18 to 45 mph; check again nearer the time.

Low confidence
Wind10 mph NW Gusts14 mph Feels1°C Rain0.6 mm Cloud-free summit62% Cloud base1,511 m Freezing level1,846 m Daylight05:35–21:16 · 15.7 h

Cloud-free timing: Around 0% early, improving to around 100% later.

A mixed day on Lurg Mhòr: summit wind broadly 0-15 mph, with gusts 10-20 mph early in the morning (a moderate breeze). The ground is likely to be saturated after recent rain. Expect boggy paths and rapid runoff if more rain arrives. Cloud base around 500-800 m in the morning, lifting to 1000-1300 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 0 to 4°C in the wind - wrap up. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 5 to 17 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.

Medium confidence
Wind23 mph S Gusts33 mph Feels4°C Rain0.0 mm Cloud-free summit94% Cloud base2,042 m Freezing level2,930 m Daylight05:37–21:13 · 15.6 h

A mixed day on Lurg Mhòr: summit wind broadly 10-30 mph, with gusts 30-40 mph during the evening (strong winds). The ground is likely to be saturated after recent rain. Expect boggy paths and rapid runoff if more rain arrives. Much calmer lower down - generally 0-10 mph in the valley, rising towards the tops. Any cloud sits well above the tops (base 2000-3200 m) - clear summits. Little or no rain expected. Bright spells with UV up to 5 - sunscreen on exposed skin. Confidence moderate (ensemble members show a moderate spread) - the summit peak could reasonably be 14-27 mph, so treat the headline as mid-range.

Low confidence
Wind39 mph SW Gusts54 mph Feels7°C Rain4.7 mm Cloud-free summit44% Cloud base787 m Freezing level3,444 m Daylight05:39–21:11 · 15.5 h
Thunder risk: moderate

from the morning into the afternoon. Leave exposed summits and ridges if thunder develops.

Cloud-free timing: Cloudier around midday at about 0%; around 50% early and 67% later.

A wild day on Lurg Mhòr: summit wind broadly 30-45 mph, with gusts 50-60 mph during the morning (gale-force winds). A meaningful thunderstorm risk is indicated from the morning into the afternoon. Avoid committing to exposed ridges if storms begin to build. Much calmer lower down - generally 5-15 mph in the valley, rising towards the tops. Cloud base around 1000-1300 m in the morning, lowering to 700-1000 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 late afternoon into the evening. 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 around 2-5 mm indicated; timing and local totals remain uncertain. Low confidence (ensemble members are widely spread) - the summit peak could be anywhere from 23 to 72 mph; check again nearer the time.

Forecast run: 2026-08-06

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