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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Sundown Mountain at 215 m altitude
Issued by Snow-Forecast.com at: 12 am (local time) / 20 Sep 2026
Next 4 days weather summary:Heavy rain (total 61.0mm), heaviest during Sat night. Very mild (max 19°C on Sat night, min 10°C on Mon night). Wind will be generally light. | Days 5-7 weather summary:Mostly dry. Very mild (max 19°C on Wed afternoon, min 6°C on Tue night). Wind will be generally light. | |||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  | |  |  | |  | | | | |
heavy rain | mod. rain | cloudy | cloudy | light rain | cloudy | cloudy | some clouds | some clouds | clear | clear | clear | some clouds | cloudy | cloudy | cloudy | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 51 | 8 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — |
max °C | 19 | 16 | 18 | 16 | 13 | 15 | 13 | 15 | 17 | 10 | 18 | 19 | 12 | 17 | 17 | 13 |
min °C | 16 | 15 | 18 | 13 | 13 | 13 | 10 | 12 | 14 | 6 | 13 | 14 | 7 | 13 | 15 | 11 |
chill °C | 15 | 14 | 17 | 11 | 11 | 12 | 8 | 10 | 13 | 4 | 12 | 14 | 6 | 12 | 15 | 11 |
Humid % | 98 | 96 | 82 | 76 | 88 | 82 | 69 | 75 | 57 | 86 | 75 | 59 | 86 | 81 | 60 | 88 |
Freeze m | 4500 | 4200 | 4150 | 3950 | 3700 | 3650 | 3350 | 3200 | 3250 | 3450 | 3600 | 3800 | 4050 | 4050 | 4200 | 4200 |
 | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — |
 | — | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — |
Days 7-16 weather summary:
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Avalanche information: National Avalanche Center
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Latest snow reports near Sundown Mountain:
Sundown Mountain Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 17 Mar 2026 |
| Snow Alerts | Create Alert |
Other resorts in USA - Iowa 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. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Sundown Mountain Forecast Snowfall
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Other resorts in USA - Iowa are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Sundown Mountain at the specific elevation of 215 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Sundown Mountain. 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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