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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Powder South Heliski at 4500 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 20 Sep 2026
Next 3 days weather summary:A moderate fall of snow, heaviest on Sun morning. Temperatures will be below freezing (max -4°C on Mon afternoon, min -15°C on Sun morning). Winds decreasing (gales from the W on Sun morning, moderate winds from the W by Mon night). | Days 4-6 weather summary:A light covering of new snow, mostly falling on Thu night. Temperatures will be below freezing (max -4°C on Fri afternoon, min -8°C on Wed night). Winds increasing (strong winds from the W on Wed morning, gales from the W by Thu afternoon). | |||||||||||||||||
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 | |
 |  |  | |  |  |  | | | | | | | | | | | | |
snow shwrs | light snow | light snow | light snow | cloudy | some clouds | some clouds | some clouds | light snow | light snow | light snow | light snow | cloudy | light snow | light snow | light snow | some clouds | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | 7 | 3 | 1 | — | — | — | — | — | — | — | 1 | 1 | — | — | 3 | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -13 | -12 | -10 | -7 | -4 | -5 | -4 | -4 | -5 | -5 | -6 | -6 | -6 | -7 | -7 | -5 | -4 | -6 |
min °C | -15 | -13 | -13 | -8 | -6 | -5 | -5 | -5 | -6 | -6 | -7 | -8 | -8 | -7 | -8 | -6 | -5 | -7 |
chill °C | -30 | -27 | -27 | -17 | -14 | -12 | -13 | -13 | -15 | -16 | -17 | -20 | -20 | -19 | -20 | -17 | -15 | -18 |
Humid % | 67 | 71 | 73 | 45 | 64 | 64 | 62 | 64 | 69 | 74 | 71 | 62 | 70 | 72 | 70 | 52 | 55 | 36 |
Freeze m | 2250 | 2500 | 2350 | 3100 | 3600 | 3700 | 3700 | 3850 | 3750 | 3550 | 3650 | 3450 | 3350 | 3450 | 3100 | 3550 | 3850 | 3550 |
 | 7:33 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — |
 | — | 7:35 | — | — | 7:36 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:38 | — |
Days 7-16 weather summary:
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Latest snow reports near Powder South Heliski:
0 km away from Powder South Heliski
5 hours ago
Snowing at a moderate rate in Valle Nevado. from Valle Nevado
8 km away from Powder South Heliski
15 hours agoSnowing in El Colorado. from El Colorado
Powder South Heliski Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 50 cm |
| Last snowfall: | 19 Sep 2026 |
| Snow Alerts | Create Alert |
Other resorts in Chile are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of September has on average:
0.8 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.9 | Powder days Fresh snow, limited sun, any wind. |
4.1 | Bluebird days Average snow, mostly sunny, light wind. |
Powder South Heliski Forecast Snowfall
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Other resorts in Chile are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Powder South Heliski at the specific elevation of 4500 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Powder South Heliski. 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 Chile.
Click here to read further information on freezing levels and how we forecast our temperatures.
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