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.
View forecast
Fortress Mountain at 1800 m altitude
Issued by Snow-Forecast.com at: 11 pm (local time) / 18 Aug 2026
Now
Next 4 days weather summary:Light rain (total 6.0mm), mostly falling on Wed night. Warm (max 23°C on Fri afternoon, min 10°C on Tue night). Wind will be generally light. | Days 5-7 weather summary:Light rain (total 9.0mm), mostly falling on Sat night. Warm (max 23°C on Sat morning, min 8°C on Sat 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 | |
 |  | |  |  |  | | | | | | | | | |  | |
some clouds | some clouds | some clouds | rain shwrs | clear | rain shwrs | rain shwrs | clear | some clouds | some clouds | some clouds | rain shwrs | rain shwrs | some clouds | some clouds | clear | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 2 | — | 1 | 3 | — | — | — | — | 3 | 6 | — | — | — |
max °C | 14 | 20 | 21 | 15 | 21 | 22 | 16 | 22 | 23 | 17 | 23 | 20 | 13 | 14 | 17 | 12 |
min °C | 10 | 15 | 20 | 10 | 15 | 22 | 10 | 15 | 23 | 14 | 18 | 18 | 8 | 10 | 17 | 8 |
chill °C | 10 | 15 | 20 | 10 | 15 | 22 | 10 | 15 | 23 | 13 | 18 | 18 | 5 | 9 | 17 | 8 |
Humid % | 54 | 56 | 39 | 79 | 64 | 38 | 84 | 64 | 28 | 50 | 46 | 58 | 79 | 84 | 50 | 64 |
Freeze m | 4200 | 4100 | 4400 | 4350 | 4250 | 4400 | 4400 | 4450 | 4600 | 4750 | 4600 | 4350 | 3750 | 3450 | 3750 | 3800 |
 | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — |
 | — | — | 8:53 | — | — | 8:52 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — |
Days 7-16 weather summary:
Interested in the 16-day Forecast? Unlock the full forecast and many more features by becoming a Pro member.
SnowPro
Go pro and carve into:
- Hourly & 16-day snow forecasts
- Fast, ad-free browsing
- Unlock full access on app & web
- Exclusive member discounts
- 20+ years of snow history
- Snow hindcasts
Avalanche information: Avalanche Canada
Popular Fortress Mountain Pages
Snow Radar
Latest snow reports near Fortress Mountain:
Fortress Mountain Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 12 Jun 2026 |
| Snow Alerts | Create Alert |
Other resorts in Canada - Alberta are reporting: powder (0) / good piste (0)
Snow-Forecast Partner Offers
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. |
Fortress Mountain Forecast Snowfall
Sign up or Login to accessSnow-Forecast Partner Offers
Photos of Fortress Mountain
Upload new photo Other resorts in Canada - Alberta are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Fortress Mountain at the specific elevation of 1800 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Fortress 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 Canada.
Click here to read further information on freezing levels and how we forecast our temperatures.
Visitor Reviews of Fortress Mountain
Overall 3.3 Based on 2 votes and 10 reviews
- Snowsure
- Variety of pistes
- Vote
- Kathleen from Canada writes:
I remember skiing Fortress back in the late 80's and loved it. Hope it will open again - hope they reopen the old lodge too - was a great place to stay - totally old school skiing and lots of good fun.
Visitor Reviews of Fortress Mountain
Kathleen from Canada writes:
I remember skiing Fortress back in the late 80's and loved it. Hope it will open again - hope they reopen the old lodge too - was a great place to stay - totally old school skiing and lots of good fun.
Nearest