Weisshorn Weather
Summit forecast at 4506 m · Western Alps · CH · SAC ZS
Summit window
Summit window today 12:00–16:00
bitter cold from 16:00
No safe summit window tomorrow — bitter cold from 08:00
Mountain weather changes fast. This is a forecast, not a safety guarantee — check official mountain forecasts and turn back when in doubt.
7-day summit forecast
| Day | Low / High | Summit wind | Rain | Freezing level | Storm risk |
|---|---|---|---|---|---|
| 🌤 Today | -21° / -15° | 16 km/h | 4% | 1520–2420 m | low |
| 🌨 Wed, Nov 4 | -20° / -15° | 22 km/h | 8% | 1760–2420 m | low |
| 🌤 Thu, Nov 5 | -18° / -13° | 27 km/h | 8% | 1810–2500 m | low |
| ⛅ Fri, Nov 6 | -17° / -13° | 35 km/h | 52% | 1880–2580 m | low |
| 🌤 Sat, Nov 7 | -19° / -14° | 21 km/h | 36% | 1700–2310 m | low |
| 🌨 Sun, Nov 8 | -20° / -13° | 47 km/h | 13% | 1530–2530 m | low |
| 🌨 Mon, Nov 9 | -16° / -11° | 50 km/h | 28% | 2060–2890 m | low |
Temperatures at the summit (4506 m), blended from 9 weather models (ECMWF IFS, NOAA GFS, DWD ICON, UK Met Office, Canada GEM, JMA (Japan), Météo-France, KNMI HARMONIE, DMI HARMONIE).
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