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Fortress Mountain 7-Day Snow Forecast - 20th August 2026

Fortress Mountain Snow Forecast - 7 day

GEM
GFS

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Updated 19 August 2026 10:41 CDT

7-Day Snow Forecast for Fortress Mountain

1-week from 20 August.

For Forecast detail, see below.

Fortress Mountain 7-Day Snow Forecast Highlights

When will there be fresh snow in Fortress Mountain?

Fortress Mountain Snow Forecast Highlights - GEM
Snowfall prediction at mid-mountain (2,205m)
Next Snow?
There is no snow currently in the forecast for Fortress Mountain.

7-Day Snow Outlook for Fortress Mountain

 
Snowfall

 
Snow Line

Max 21℃
Min 1℃

Snow unlikely

Fortress Mountain Medium-Range (7-Day) Snow Forecast Detail

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

Max 21℃
Min 7℃

Valley temperatures from an overnight low of 7℃ to daytime highs around 21℃

Temperature at BaseTemp at Base

Thu
20

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Fortress Mountain are in Edmonton (Canada/Mountain) time zone.

Max 21℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 21℃

Temperature at BaseTemp at Base

Fri
21

Snow unlikely

ClearClearClearCloud

Clear sky early, then cloudy later.

Forecast times for Fortress Mountain are in Edmonton (Canada/Mountain) time zone.

Max 18℃
Min 10℃

Valley temperatures from an overnight low of 10℃ to daytime highs around 18℃

Temperature at BaseTemp at Base

Sat
22

Snow unlikely

CloudMixedShwrsLt Drizzle

Cloudy first, clear spells then rain showers, light drizzle later.

Forecast times for Fortress Mountain are in Edmonton (Canada/Mountain) time zone.

Max 10℃
Min 6℃

Valley temperatures from an overnight low of 6℃ to daytime highs around 10℃

Temperature at BaseTemp at Base

Sun
23

Snow unlikely

Lt DrizzleLt DrizzleLt DrizzleMixed

Light drizzle early, then clear spells later.

Forecast times for Fortress Mountain are in Edmonton (Canada/Mountain) time zone.

Max 14℃
Min 3℃

Valley temperatures from an overnight low of 3℃ to daytime highs around 14℃

Temperature at BaseTemp at Base

Mon
24

Snow unlikely

CloudClearClearClear

Cloudy early, then clear sky later.

Forecast times for Fortress Mountain are in Edmonton (Canada/Mountain) time zone.

Max 11℃
Min 5℃

Valley temperatures from an overnight low of 5℃ to daytime highs around 11℃

Temperature at BaseTemp at Base

Tue
25

Snow unlikely

ClearFairMixedClear

Clear sky first, fair then clear spells, clear sky later.

Forecast times for Fortress Mountain are in Edmonton (Canada/Mountain) time zone.

Max 14℃
Min 1℃

Valley temperatures from an overnight low of 1℃ to daytime highs around 14℃
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Wed
26

Snow unlikely

ClearClearClearFair

Clear sky early, then fair later.

Forecast times for Fortress Mountain are in Edmonton (Canada/Mountain) time zone.

No significant snowfall is forecast for this period.

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 Snow Forecast updated at 10:41 CDT, next update expected imminently.

Snow Reliability

Fortress Mountain typically enjoys reliable snow conditions, with an average snowfall of 300 cm annually. For the latest snow depth and conditions, check J2Ski for updated information.