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Mount St. Louis / Moonstone 7-Day Snow Forecast - 5th September 2026

Mount St. Louis / Moonstone Snow Forecast - 7 day

GEM
GFS

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Updated 04 September 2026 17:43 PDT

7-Day Snow Forecast for Mount St. Louis / Moonstone

1-week from 5 September.

For Forecast detail, see below.

Mount St. Louis / Moonstone 7-Day Snow Forecast Highlights

When will there be fresh snow in Mount St. Louis / Moonstone?

Mount St. Louis / Moonstone Snow Forecast Highlights - GEM
Snowfall prediction at mid-mountain (1,050ft)
Next Snow?
There is no snow currently in the forecast for Mount St. Louis / Moonstone.

7-Day Snow Outlook for Mount St. Louis / Moonstone

 
Snowfall

 
Snow Line

Max 76°F
Min 50°F

Snow unlikely

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Mount St. Louis / Moonstone 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 76°F
Min 50°F

Valley temperatures from an overnight low of 50°F to daytime highs around 76°F

Temperature at BaseTemp at Base

Sat
05

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.

Max 75°F
Min 52°F

Valley temperatures from an overnight low of 52°F to daytime highs around 75°F

Temperature at BaseTemp at Base

Sun
06

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.

Max 75°F
Min 57°F

Valley temperatures from an overnight low of 57°F to daytime highs around 75°F

Temperature at BaseTemp at Base

Mon
07

Snow unlikely

CloudClearClearClear

Cloudy early, then clear sky later.

Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.

Max 72°F
Min 57°F

Valley temperatures from an overnight low of 57°F to daytime highs around 72°F

Temperature at BaseTemp at Base

Tue
08

Snow unlikely

ClearClearFairCloud

Clear sky, fair, cloudy later.

Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.

Max 71°F
Min 66°F

Valley temperatures from an overnight low of 66°F to daytime highs around 71°F

Temperature at BaseTemp at Base

Wed
09

Snow unlikely

CloudLt DrizzleHvy DrizzleLt Rain

Cloudy first, light drizzle then heavy drizzle, light rain showers later.

Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.

Max 68°F
Min 58°F

Valley temperatures from an overnight low of 58°F to daytime highs around 68°F

Temperature at BaseTemp at Base

Thu
10

Snow unlikely

DrizzleClearFairClear

Drizzle first, clear sky then fair, clear sky later.

Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.

Max 65°F
Min 53°F

Valley temperatures from an overnight low of 53°F to daytime highs around 65°F

Temperature at BaseTemp at Base

Fri
11

Snow unlikely

ClearFairClearClear

Clear sky, fair, clear sky later.

Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.

No significant snowfall is forecast for this period.

This Snow Forecast for Mount St. Louis / Moonstone, 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 Mount St. Louis / Moonstone, on any given trail 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.

Mount St. Louis / Moonstone Snow Forecast updated at 17:43 PDT, next update expected imminently.

Snow Reliability

The resort typically enjoys good snow reliability, with an average snow depth of around 100 cm during peak season. For the latest snow conditions, be sure to check J2Ski for up-to-date information.