Mount St. Louis / Moonstone 7-Day Snow Forecast

Mount St. Louis / Moonstone Long-Range Snow Forecast Updated today

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Updated 20 March 2026 10:46 PDT

Long-Range Snow Forecast for Mount St. Louis / Moonstone

Long-range (14 to 45 days) from 21 March.

For Forecast detail, see below.

Mount St. Louis / Moonstone 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 Expected	21 March
Next Snow Amount	1in
Next 48 Hours	2in
Next 7 Days	4in

Long-range Snow Outlook for Mount St. Louis / Moonstone

Snowfall

Snow Line

Max 41°F
Min 7°F

4in New Snow

Snow falling to resort level (801ft).

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Mount St. Louis / Moonstone Long-Range (2 weeks+) Snow Forecast Outlook

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.

16 Day Weather and Snow Forecast for Mount St. Louis / Moonstone from OpenMeteo(GEM)
	Snow and Weather	Temp Town
Sat 21	1in New Snow Snow showers. Snow falling to resort level (801ft).	Max 38°F Min 30°F
Sun 22	Cloudy.	Max 41°F Min 31°F
Mon 23	Clear spells.	Max 31°F Min 23°F
Tue 24	New Snow Light snow showers. Snow falling to resort level (801ft).	Max 35°F Min 9°F
Wed 25	Clear sky.	Max 30°F Min 9°F
Thu 26	2in New Snow Snow showers. Snow falling to resort level (801ft).	Max 29°F Min 7°F
Fri 27	Clear spells.	Max 29°F Min 17°F

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 10:46 PDT, next update expected imminently.

Ensemble forecast for Mount St. Louis / Moonstone, Canada at 801ft

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Canada Hotels Map

Snow Forecast near Mount St. Louis / Moonstone

Snow Forecasts for Ski Resorts near Mount St. Louis / Moonstone
Ski Area	48 Hr	7 Day	Sa	Su	Mo	Tu	We	Th	Fr
Snow Valley Barrie	-	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.

Off-Piste Safety in Mount St. Louis / Moonstone

Before skiing or snowboarding off-piste in Mount St. Louis / Moonstone, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.