New €155m Les Grands Montets Lift Begins Opening This Winter
Closed since the devastating 2018 fire, the first part of the flagship new Grands Montets lift above Argentière in the Chamonix Valley is set to open this December.
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Ski Cooper at 3384 m altitude
Issued by Snow-Forecast.com at: 5 am (local time) / 20 Sep 2026
Next 3 days weather summary:Some drizzle, heaviest during Tue night. Very mild (max 13°C on Tue afternoon, min 3°C on Sun night). Wind will be generally light. | Days 4-6 weather summary:Moderate rain (total 16.0mm), heaviest on Thu morning. Very mild (max 12°C on Wed afternoon, min 4°C on Thu night). Wind will be generally light. | |||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  | | | |  | |  |  | | | |  | | | |
clear | clear | clear | clear | cloudy | clear | clear | cloudy | rain shwrs | cloudy | light rain | light rain | light rain | light rain | rain shwrs | some clouds | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | 1 | — | 1 | 5 | 5 | 3 | 2 | — | — | — |
max °C | 9 | 10 | 5 | 10 | 12 | 7 | 11 | 13 | 7 | 10 | 12 | 7 | 5 | 6 | 5 | 10 | 10 | 6 |
min °C | 6 | 9 | 3 | 6 | 11 | 4 | 8 | 12 | 5 | 7 | 9 | 5 | 5 | 6 | 4 | 6 | 9 | 4 |
chill °C | 3 | 6 | 1 | 5 | 10 | 4 | 8 | 12 | 4 | 6 | 9 | 5 | 5 | 5 | 3 | 5 | 8 | 2 |
Humid % | 43 | 29 | 47 | 41 | 22 | 45 | 35 | 23 | 63 | 68 | 38 | 82 | 89 | 87 | 84 | 60 | 40 | 67 |
Freeze m | 4300 | 4700 | 4050 | 4250 | 4850 | 4300 | 4400 | 4900 | 4400 | 4400 | 5000 | 4450 | 4250 | 4350 | 4150 | 4350 | 4800 | 4200 |
 | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — |
Days 7-16 weather summary:
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Avalanche information: Colorado Avalanche Information Center
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Latest snow reports near Ski Cooper:
Ski Cooper Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 26 May 2026 |
| Snow Alerts | Create Alert |
Other resorts in USA - Colorado are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of September has on average:
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
Ski Cooper Forecast Snowfall
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Other resorts in USA - Colorado are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Ski Cooper at the specific elevation of 3384 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Ski Cooper. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of United States.
Click here to read further information on freezing levels and how we forecast our temperatures.
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