Fortress Mountain Weather
Weather Forecast for Fortress Mountain ( 2,040m to 2,370m 6,693ft to 7,776ft )
This is the Snow Forecast and Weather Outlook for Fortress Mountain, Canada for 10 days from 16 December.
Updated 16 December 2025 18:32 UTC.
Forecast times for Fortress Mountain are in Mountain Time (Canada/Mountain).
Fortress Mountain Forecast
See below for the detailed long-range forecast, including lowest and highest temperatures, sunshine, cloud cover, wind and rain projections.
Fortress Mountain Weather Forecast updated at 18:32 UTC, next update expected 00:00 UTC.
Long-range Snow Outlook for Fortress Mountain
Snowfall
Snow Line
134cm 53in New Snow
Snow falling to resort level.
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Powder Alert!
Updated 16 December 2025 20:32 UTC
Powder Possible :- 98cm 39in of Fresh Snow is forecast for Fortress Mountain over the next 2 days.
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Fortress Mountain Daily Weather Forecast Detail
| Base | Snow and Weather | Temp Town | |
|---|---|---|---|
| Tue 16 |  | 39cm 15in New Snow | Max -1℃ 29°F Min -5℃ 23°F |
| Wed 17 |  | 37cm 14in New Snow | Max -3℃ 27°F Min -9℃ 15°F |
| Thu 18 |  | 30cm 12in New Snow | Max -2℃ 29°F Min -8℃ 18°F |
| Fri 19 |  | 5cm 2in New Snow | Max -8℃ 18°F Min -11℃ 12°F |
| Sat 20 | | 9cm 4in New Snow | Max -7℃ 19°F Min -9℃ 15°F |
| Sun 21 | | 5cm 2in New Snow | Max -6℃ 21°F Min -11℃ 11°F |
| Mon 22 | | 9cm 4in New Snow | Max -7℃ 20°F Min -9℃ 16°F |
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In to see the full long-range weather forecast (out to 16 days, with more weather detail).
This Snow Forecast for Fortress Mountain, Canada gives the predicted Snowfall and Freezing Levels for the next week.
The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Fortress Mountain, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.
Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.
Fortress Mountain Weather Forecast updated at 18:32 UTC, next update expected 00:00 UTC.
Current Snow
For current snow depths and skiing conditions, see our Current Snow Report for Fortress Mountain.For more information about this Canadian Ski Resort, See Also Skiing and Snowboarding in Fortress Mountain .
Off-Piste Safety in Fortress Mountain
Before skiing or snowboarding off-piste in Fortress Mountain, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.