Fortress Mountain Snow Report and Forecast
Snow Forecast for Fortress Mountain
When will there be fresh snow?
This is the Snow Forecast for Fortress Mountain, Canada for 10 days from 9 May.
Updated 09 May 2025 19:37 BST.
| Next Snow Expected | 12 May |
|---|---|
| Next Snow Amount | 8cm 3in |
| Next 48 Hours | - - |
| Next 7 Days | 12cm 5in |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Fortress Mountain.
Forecast for today in Fortress Mountain
Max 1℃ 34°F
Min -5℃ 23°F
Valley temperatures from an overnight low of -5℃ 23°F to daytime highs around 1℃ 34°F
Temperature at BaseTemp at Base
Fri
09
Snow unlikely
Clear sky.
Fortress Mountain has very light new snow forecast in the next 48 hours.
Fortress Mountain Snow Report
| Upper Snow Depths |
| - |
| Lower Snow Depths |
| - |
| Snow Conditions |
| - |
Fortress Mountain 7-Day Snow Forecast Overview
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| Fri 09 | Sat 10 | Sun 11 | Mon 12 | Tue 13 | Wed 14 | Thu 15 | |
|---|---|---|---|---|---|---|---|
| Wind | |||||||
| 2,370m 7,776ft | -1℃ 30°F
| -1℃ 30°F
 | 0℃ 33°F
| -3℃ 27°F
 +8cm +3in
| 2℃ 35°F
+4cm +1in
| 2℃ 36°F
 | 4℃ 40°F
|
| 2,205m 7,234ft | 0℃ 32°F
| 0℃ 32°F
| 2℃ 35°F
| -2℃ 29°F
+8cm +3in
| 3℃ 37°F
+4cm +1in
| 3℃ 38°F
| 5℃ 41°F
|
| 2,040m 6,693ft | 1℃ 34°F
| 1℃ 34°F
| 3℃ 36°F
| -1℃ 31°F
+8cm +3in
| 4℃ 39°F
+3cm +1in
| 4℃ 40°F
| 6℃ 43°F
|
| Snow Line | 2,040m 6,693ft | 2,040m 6,693ft | varying 2,102m 6,896ft | ||||
| Max Town | 1℃ 34°F | 1℃ 34°F | 3℃ 36°F | -1℃ 31°F | 4℃ 39°F | 4℃ 40°F | 6℃ 43°F |
| Min Town | -5℃ 23°F | 0℃ 32°F | -6℃ 21°F | -3℃ 26°F | -2℃ 28°F | -1℃ 30°F | -2℃ 28°F |
This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.
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 1℃ 34°F
Min -5℃ 23°F
Valley temperatures from an overnight low of -5℃ 23°F to daytime highs around 1℃ 34°F
Temperature at BaseTemp at Base
Fri
09
Snow unlikely
Clear sky.
Max 1℃ 34°F
Min 0℃ 32°F
Valley temperatures from an overnight low of 0℃ 32°F to daytime highs around 1℃ 34°F
Temperature at BaseTemp at Base
Sat
10
Snow unlikely
Clear sky, fair, clear spells later.
Max 3℃ 36°F
Min -6℃ 21°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -6℃ 21°F and rising to 3℃ 36°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sun
11
Snow unlikely
Fair, clear spells, light snow showers later.
Max -1℃ 31°F
Min -3℃ 26°F
Below freezing at all levels, with valley temperatures as low as -3℃ 26°F and not getting above -1℃ 31°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
12
8cm 3in New Snow
Light snow early, then heavy snow showers later.
Snow falling to resort level.
Max 4℃ 39°F
Min -2℃ 28°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ 28°F and rising to 4℃ 39°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Tue
13
3cm to 4cm 1in New Snow
Snow showers, heavy snow showers, cloudy later.
Snow Line from 2,102m 6,896ft to resort level.
Max 4℃ 40°F
Min -1℃ 30°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -1℃ 30°F and rising to 4℃ 40°F
Temperature at BaseTemp at Base
Wed
14
Snow unlikely
Cloudy.
Max 6℃ 43°F
Min -2℃ 28°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ 28°F and rising to 6℃ 43°F
Temperature at BaseTemp at Base
Thu
15
Snow unlikely
Clear spells early, then clear sky later.
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 19:37 BST, next update expected 01:00 BST.
Understanding and predicting Snow Conditions in Fortress Mountain
Here are our tips for making the most of a trip to Fortress Mountain, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Fortress Mountain, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.
Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:
Pistes (Groomers) or Off-Piste
These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.
- Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
- Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.
WARNING - skiing off-piste (out-of-bounds) at Fortress Mountain is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.
Analyzing Weather and Snowfall Forecasts
Whilst no forecast can tell you exactly how snow conditions in Fortress Mountain will develop, checking the forecast regularly should give you an idea of what to expect.
New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.
Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.
Predicting Future Snow Quality
Regularly check our snow and weather forecasts for Fortress Mountain for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.
Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.