South American Ski Area Extends Season After Huge Snowfalls
Chile’s Portillo ski area has announced it is extending its 2026 season by several week into mid-October after massive snowfalls over the past month.
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Deer Mountain at 1929 m altitude
Issued by Snow-Forecast.com at: 11 pm (local time) / 18 Aug 2026
Now
Next 4 days weather summary:Moderate rain (total 10.0mm), heaviest on Tue night. Warm (max 28°C on Fri afternoon, min 13°C on Tue night). Wind will be generally light. | Days 5-7 weather summary:Light rain (total 4.0mm), mostly falling on Sat night. Warm (max 26°C on Sat afternoon, min 17°C on Sun night). Wind will be generally light. | |||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | |  | | | | | | | | | | |
rain shwrs | clear | some clouds | clear | clear | clear | some clouds | some clouds | clear | some clouds | clear | some clouds | rain shwrs | clear | clear | rain shwrs | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 10 | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 1 |
max °C | 14 | 20 | 22 | 18 | 23 | 25 | 20 | 27 | 28 | 22 | 25 | 26 | 21 | 24 | 25 | 21 |
min °C | 13 | 17 | 21 | 16 | 21 | 23 | 19 | 24 | 26 | 19 | 22 | 24 | 18 | 22 | 25 | 17 |
chill °C | 13 | 16 | 21 | 16 | 21 | 23 | 19 | 24 | 26 | 19 | 22 | 24 | 18 | 22 | 25 | 17 |
Humid % | 63 | 43 | 28 | 39 | 27 | 22 | 35 | 22 | 22 | 36 | 31 | 34 | 48 | 42 | 27 | 41 |
Freeze m | 4300 | 4250 | 4600 | 4750 | 4650 | 4900 | 5000 | 5050 | 5150 | 5100 | 5150 | 5250 | 5250 | 5100 | 5050 | 4950 |
 | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — |
 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:46 | — |
Days 7-16 weather summary:
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Avalanche information: National Avalanche Center
Popular Deer Mountain Pages
Snow Radar
Latest snow reports near Deer Mountain:
Deer Mountain Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 22 May 2026 |
| Snow Alerts | Create Alert |
Other resorts in USA - South Dakota are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of August 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. |
Deer Mountain Forecast Snowfall
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Other resorts in USA - South Dakota are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Deer Mountain at the specific elevation of 1929 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Deer 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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