Castle Mountain 7-Day Snow Forecast

Castle Mountain Long-Range Snow Forecast Updated today

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Updated 21 September 2026 03:44 PDT

Long-Range Snow Forecast for Castle Mountain

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

For Forecast detail, see below.

Castle Mountain Snow Forecast Highlights

When will there be fresh snow in Castle Mountain?

Castle Mountain Snow Forecast Highlights - GEM
Snowfall prediction at mid-mountain (6,042ft)
Next Snow?
There is no snow currently in the forecast for Castle Mountain.

Long-range Snow Outlook for Castle Mountain

Snowfall

Snow Line

Max 72°F
Min 33°F

New Snow

Snow falling to 6,644ft, with rain below.

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Castle Mountain 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 Castle Mountain from OpenMeteo(GEM)
	Snow and Weather	Temp Town
Mon 21	Clear sky.	Max 71°F Min 50°F
Tue 22	Clear sky.	Max 72°F Min 53°F
Wed 23	Clear sky.	Max 63°F Min 42°F
Thu 24	Cloudy.	Max 58°F Min 39°F
Fri 25	New Snow Light snow at altitude, light drizzle below. Snow falling to 6,644ft, with rain below.	Max 51°F Min 38°F
Sat 26	Clear sky.	Max 51°F Min 33°F
Sun 27	Clear sky.	Max 52°F Min 39°F

This Snow Forecast for Castle Mountain, 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 Castle Mountain, 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.

Castle Mountain Snow Forecast updated at 03:44 PDT, next update expected imminently.

Ensemble forecast for Castle Mountain, Canada at 4,626ft

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

Castle Mountain is known for its reliable snow conditions, with an average snowfall of around 7 meters each season. Visitors can typically expect a solid snow depth throughout the winter, but it's advisable to check the latest snow reports on J2Ski for the most current information.

Off-Piste Safety in Castle Mountain

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