Aconcagua Weather
Summit forecast at 6961 m · South America · AR · SAC T4
Summit window
No daylight left today
No safe summit window tomorrow — wind over 40 km/h from 07:00
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 | -29° / -28° | 103 km/h | 7% | 2630–2730 m | low |
| ☀️ Tue, Nov 3 | -32° / -25° | 131 km/h | 56% | 2200–3280 m | low |
| ☀️ Wed, Nov 4 | -34° / -23° | 114 km/h | 2% | 1960–3530 m | low |
| ☀️ Thu, Nov 5 | -32° / -22° | 152 km/h | 44% | 2130–3670 m | low |
| ☀️ Fri, Nov 6 | -29° / -24° | 166 km/h | 21% | 2640–3430 m | low |
| ☀️ Sat, Nov 7 | -28° / -19° | 120 km/h | 5% | 2780–4030 m | low |
| ☀️ Sun, Nov 8 | -27° / -17° | 96 km/h | 6% | 2880–4430 m | low |
Temperatures at the summit (6961 m), blended from 7 weather models (ECMWF IFS, NOAA GFS, DWD ICON, UK Met Office, Canada GEM, JMA (Japan), Météo-France).
Mountain weather lives in the app
Hour-by-hour summit weather for Aconcagua, alerts the evening before and the morning of a planned hike, marked routes with the best start time — free, no account.
App Store · Coming soon Google Play · Coming soon
Become a tester