J2Ski J2Ski logo
Facebook

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

Mount St. Louis / Moonstone Snow Forecast - 7 day

GEM
GFS

PROSubscribe to Switch Weather Model

Updated 15 May 2026 05:50 UTC

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

1-week from 15 May.

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 (320m)
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 30℃ 85°F
Min 3℃ 38°F

Snow unlikely

Partner Offers

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 19℃ 65°F
Min 3℃ 38°F

Valley temperatures from an overnight low of 3℃ 38°F to daytime highs around 19℃ 65°F

Temperature at BaseTemp at Base

Fri
15

Snow unlikely

CloudClearClearFair

Cloudy, clear sky, fair later.

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

Max 25℃ 78°F
Min 11℃ 51°F

Valley temperatures from an overnight low of 11℃ 51°F to daytime highs around 25℃ 78°F

Temperature at BaseTemp at Base

Sat
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 22℃ 71°F
Min 8℃ 47°F

Valley temperatures from an overnight low of 8℃ 47°F to daytime highs around 22℃ 71°F

Temperature at BaseTemp at Base

Sun
17

Snow unlikely

ClearClearClearFair

Clear sky early, then fair later.

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

Max 30℃ 85°F
Min 14℃ 57°F

Valley temperatures from an overnight low of 14℃ 57°F to daytime highs around 30℃ 85°F

Temperature at BaseTemp at Base

Mon
18

Snow unlikely

CloudClearClearClear

Cloudy early, then clear sky later.

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

Max 29℃ 83°F
Min 17℃ 63°F

Valley temperatures from an overnight low of 17℃ 63°F to daytime highs around 29℃ 83°F

Temperature at BaseTemp at Base

Tue
19

Snow unlikely

ClearClearLt RainDrizzle

Clear sky, light rain showers, drizzle later.

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

Max 16℃ 60°F
Min 8℃ 47°F

Valley temperatures from an overnight low of 8℃ 47°F to daytime highs around 16℃ 60°F

Temperature at BaseTemp at Base

Wed
20

Snow unlikely

Hvy DrizzleClearFairClear

Heavy drizzle first, clear sky then fair, clear sky later.

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

Max 12℃ 53°F
Min 5℃ 41°F

Valley temperatures from an overnight low of 5℃ 41°F to daytime highs around 12℃ 53°F

Temperature at BaseTemp at Base

Thu
21

Snow unlikely

ClearMixedMixedFair

Clear sky, clear spells, fair 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 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.

Mount St. Louis / Moonstone Snow Forecast updated at 05:50 UTC, next update expected 11:00 UTC.

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.