Sir Sam's 7-Day Snow Forecast

Sir Sam's Long-Range Snow Forecast Updated today

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Updated 20 March 2026 23:11 IST

Long-Range Snow Forecast for Sir Sam's

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

For Forecast detail, see below.

Sir Sam's Snow Forecast Highlights

When will there be fresh snow in Sir Sam's?

Sir Sam's Snow Forecast Highlights - GEM
Snowfall prediction at mid-mountain (390m)
Next Snow Expected	21 March
Next Snow Amount	2cm
Next 48 Hours	2cm
Next 7 Days	8cm

Long-range Snow Outlook for Sir Sam's

Snowfall

Snow Line

Max 3℃
Min -17℃

8cm New Snow

Snow falling to resort level (340m).

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Sir Sam's 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 Sir Sam's from OpenMeteo(GEM)
	Snow and Weather	Temp Town
Sat 21	2cm New Snow Cloudy. Snow falling to resort level (340m).	Max 2℃ Min -3℃
Sun 22	Cloudy.	Max 3℃ Min -3℃
Mon 23	Clear spells.	Max -1℃ Min -8℃
Tue 24	1cm New Snow Light snow showers. Snow falling to resort level (340m).	Max -1℃ Min -14℃
Wed 25	Clear sky.	Max -3℃ Min -17℃
Thu 26	5cm New Snow Heavy snow showers. Snow falling to resort level (340m).	Max -5℃ Min -17℃
Fri 27	Clear sky.	Max -3℃ Min -12℃

This Snow Forecast for Sir Sam's, 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 Sir Sam's, 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.

Sir Sam's Snow Forecast updated at 23:11 IST, next update expected imminently.

Ensemble forecast for Sir Sam's, Canada at 340m

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.

Snow Reliability

Sir Sam's typically experiences reliable snow conditions with an average depth of 60-100 cm. For the latest updates on snow conditions, be sure to check J2Ski.

Off-Piste Safety in Sir Sam's

Before skiing or snowboarding off-piste in Sir Sam's, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.