Castle Mountain 7-Day Snow Forecast

Castle Mountain Long-Range Snow Forecast Updated today

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Updated 12 September 2026 00:43 BST

Long-Range Snow Forecast for Castle Mountain

Long-range (14 to 45 days) from 12 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 (1,842m)
Next Snow?
There is no snow currently in the forecast for Castle Mountain.

Long-range Snow Outlook for Castle Mountain

Snowfall

Snow Line

Max 19℃ 66°F
Min 3℃ 37°F

2cm 1in New Snow

Snow Line from 2,041m 6,696ft to 1,902m 6,240ft , 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
Sat 12	Clear sky.	Max 17℃ 62°F Min 6℃ 43°F
Sun 13	Cloudy.	Max 10℃ 49°F Min 5℃ 41°F
Mon 14	up to 2cm up to 1in New Snow Light snow showers at altitude, light rain showers below. Snow Line from 2,041m 6,696ft to 1,902m 6,240ft , with rain below.	Max 13℃ 54°F Min 5℃ 40°F
Tue 15	Cloudy.	Max 12℃ 53°F Min 5℃ 41°F
Wed 16	Clear sky.	Max 15℃ 59°F Min 5℃ 40°F
Thu 17	Clear sky.	Max 17℃ 63°F Min 3℃ 37°F
Fri 18	Clear sky.	Max 19℃ 66°F Min 6℃ 43°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 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.

Castle Mountain Snow Forecast updated at 00:43 BST, next update expected imminently.

Ensemble forecast for Castle Mountain, Canada at 1,410m

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.

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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.