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Mount St. Louis / Moonstone 7-Day Snow Forecast - 15th August 2026

Mount St. Louis / Moonstone Snow Forecast - 7 day

GEM
GFS

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Updated 15 August 2026 03:41 PDT

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

1-week from 15 August.

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 78°F
Min 52°F

Snow unlikely

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 78°F
Min 56°F

Valley temperatures from an overnight low of 56°F to daytime highs around 78°F

Temperature at BaseTemp at Base

Sat
15

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 78°F
Min 62°F

Valley temperatures from an overnight low of 62°F to daytime highs around 78°F

Temperature at BaseTemp at Base

Sun
16

Snow unlikely

ClearClearCloudCloud

Clear sky early, then cloudy later.

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

Max 76°F
Min 64°F

Valley temperatures from an overnight low of 64°F to daytime highs around 76°F

Temperature at BaseTemp at Base

Mon
17

Snow unlikely

CloudCloudLt DrizzleClear

Cloudy, light drizzle, clear sky later.

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

Max 77°F
Min 61°F

Valley temperatures from an overnight low of 61°F to daytime highs around 77°F

Temperature at BaseTemp at Base

Tue
18

Snow unlikely

ClearFairClearClear

Clear sky, fair, clear sky later.

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

Max 72°F
Min 62°F

Valley temperatures from an overnight low of 62°F to daytime highs around 72°F

Temperature at BaseTemp at Base

Wed
19

Snow unlikely

MixedDrizzleShwrsShwrs

Clear spells, drizzle, rain showers later.

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

Max 70°F
Min 59°F

Valley temperatures from an overnight low of 59°F to daytime highs around 70°F

Temperature at BaseTemp at Base

Thu
20

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 72°F
Min 52°F

Valley temperatures from an overnight low of 52°F to daytime highs around 72°F

Temperature at BaseTemp at Base

Fri
21

Snow unlikely

ClearClearClearClear

Clear sky.

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 03:41 PDT, next update expected 09:00 PDT.

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.