Mount St. Louis / Moonstone Snow Forecast - 7 day
Updated 20 March 2026 17:46 GMT
7-Day Snow Forecast for Mount St. Louis / Moonstone
1-week from 21 March.
For Forecast detail, see below.
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Mount St. Louis / Moonstone 7-Day Snow Forecast Highlights
When will there be fresh snow in Mount St. Louis / Moonstone?
| Next Snow Expected | 21 March |
|---|---|
| Next Snow Amount | 4cm 1in |
| Next 48 Hours | 4cm 2in |
| Next 7 Days | 11cm 4in |
7-Day Snow Outlook for Mount St. Louis / Moonstone
Snowfall
Snow Line
Max 5℃ 41°F
Min -14℃ 7°F
11cm 4in New Snow
Snow falling to resort level ( 244m 801ft ).
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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 3℃ 38°F
Min -1℃ 30°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -1℃ 30°F and rising to 3℃ 38°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
21
4cm 1in New Snow
Cloudy, clear spells, heavy snow showers later.
Snow falling to resort level ( 244m 801ft ).
Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.
Max 5℃ 41°F
Min 0℃ 31°F
Valley temperatures from an overnight low of 0℃ 31°F to daytime highs around 5℃ 41°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sun
22
Snow unlikely
Snow showers first, cloudy then rain showers, cloudy later.
Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.
Max 0℃ 31°F
Min -5℃ 23°F
Below freezing at all levels, with valley temperatures as low as -5℃ 23°F and not getting above 0℃ 31°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Mon
23
Snow unlikely
Cloudy, fair, clear spells later.
Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.
Max 1℃ 35°F
Min -13℃ 9°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -13℃ 9°F and rising to 1℃ 35°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Tue
24
1cm New Snow
Clear sky, clear spells, light snow showers later.
Snow falling to resort level ( 244m 801ft ).
Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.
Max -1℃ 30°F
Min -13℃ 9°F
Below freezing at all levels, with valley temperatures as low as -13℃ 9°F and not getting above -1℃ 30°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Wed
25
Snow unlikely
Light snow, clear spells, clear sky later.
Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.
Max -1℃ 29°F
Min -14℃ 7°F
Below freezing at all levels, with valley temperatures as low as -14℃ 7°F and not getting above -1℃ 29°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Thu
26
6cm 2in New Snow
Clear sky first, light snow then heavy snow showers, light snow later.
Snow falling to resort level ( 244m 801ft ).
Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.
Max -1℃ 29°F
Min -9℃ 17°F
Below freezing at all levels, with valley temperatures as low as -9℃ 17°F and not getting above -1℃ 29°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Fri
27
Snow unlikely
Heavy snow showers, clear spells, clear sky later.
Forecast times for Mount St. Louis / Moonstone are in Toronto (Canada/Eastern) time zone.
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 17:46 GMT, next update expected imminently.
Snow Forecast near Mount St. Louis / Moonstone
| Ski Area | 48 Hr | 7 Day | Sa | Su | Mo | Tu | We | Th | Fr |
|---|---|---|---|---|---|---|---|---|---|
| Snow Valley Barrie | 1cm - | 6cm 3in |
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.