395 m summit forecast for wind, cloud, rain and temperature. Updated 25 August 2026 at 15:32 UTC.
Silver How on Tuesday 25 August 2026: summit wind around 20 mph E, gusting 28 mph; modelled cloud-free summit for 100% of daylight; feels like 10°C; 0.0 mm rain.
Conditions can change quickly with height. Use the day-by-day summit detail below, then check again close to departure.
A fine day on Silver How: summit wind broadly 10-25 mph, with gusts 25-35 mph during the evening (fresh and blowy). Any cloud sits well above the tops (base 1000-1500 m) - clear summits. Little or no rain expected.
Forecast confidence: Thunderstorm timing is inherently uncertain and may shift by several hours.
from the morning into the evening. Leave exposed summits and ridges if thunder develops.
A mixed day on Silver How: summit wind broadly 10-20 mph, with gusts 20-30 mph early in the morning (fresh and blowy). A meaningful thunderstorm risk is indicated from the morning into the evening. Avoid committing to exposed ridges if storms begin to build. Any cloud sits well above the tops (base 900-3100 m) - clear summits. Cloud is likely to hang lowest on eastern slopes; the western 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.
Forecast confidence: Thunderstorm timing is inherently uncertain and may shift by several hours.
from the morning into the evening. Leave exposed summits and ridges if thunder develops.
A wild day on Silver How: summit wind broadly 5-25 mph, with gusts 20-30 mph during the evening (fresh and blowy). A meaningful thunderstorm risk is indicated from the morning into the evening. Avoid committing to exposed ridges if storms begin to build. Any cloud sits well above the tops (base 400-800 m) - clear summits. A persistently wet day is possible, with around 5-10 mm indicated; local totals could vary considerably.
Forecast confidence: Thunderstorm timing is inherently uncertain and may shift by several hours.
from the morning into the evening. Leave exposed summits and ridges if thunder develops.
A mixed day on Silver How: summit wind broadly 5-20 mph, with gusts 15-25 mph during the evening (fresh and blowy). Thunderstorms are a significant hazard from the morning into the evening. Exposed summits and ridges are a poor choice while storms are nearby. Any cloud sits well above the tops (base 400-700 m) - clear summits. Some rain is likely, with around 2-5 mm indicated; timing and local totals remain uncertain.
Forecast confidence: Rain is possible, but forecast models differ by about 6 hours on when it arrives.
Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.
Cloud-free timing: Cloudy early, clearing later.
A wild day on Silver How: summit wind broadly 0-15 mph, with gusts 5-15 mph around midday (a moderate breeze). The ground is likely to be wet after recent rain. There could be a spate risk based on forecast rainfall. Burns and unbridged crossings may rise quickly. Most likely from around 14:00 until around 03:00 the following day. Any cloud sits well above the tops (base 400-700 m) - clear summits. A persistently wet day is possible, with around 5-10 mm indicated; local totals could vary considerably.
Forecast confidence: Thunderstorm timing is inherently uncertain and may shift by several hours.
from early morning into the evening. Leave exposed summits and ridges if thunder develops.
Burns and unbridged crossings may rise quickly. Assess them at the water and turn back if unsure.
A wild day on Silver How: summit wind broadly 5-20 mph, with gusts 15-25 mph during the afternoon (a moderate breeze). 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. 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 03:00 the following day. Any cloud sits well above the tops (base 400-700 m) - clear summits. 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.
Forecast confidence: Thunderstorm timing is inherently uncertain and may shift by several hours.
from early morning into the evening. Leave exposed summits and ridges if thunder develops.
Cloud-free timing: Cloudy early, clearing later.
A mixed day on Silver How: summit wind broadly 15-25 mph, with gusts 25-35 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. Any cloud sits well above the tops (base 400-1000 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 around 2-5 mm indicated; timing and local totals remain uncertain. Confidence moderate (Summit wind could be roughly 15-30 mph, which changes how difficult exposed walking may feel) - the summit peak could reasonably be 15-30 mph, so treat the headline as mid-range.
Forecast run: 2026-08-25
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Mountain weather can differ sharply from conditions in the valley. Check official warnings, carry appropriate navigation and clothing, and be ready to change the plan. Read how Mountain Weather forecasts are produced and where their limits lie.