Chestnut Mountain 7-Day Snow Forecast

Chestnut Mountain Long-Range Snow Forecast Updated today

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Updated 21 August 2026 05:42 NZST

Long-Range Snow Forecast for Chestnut Mountain

Long-range (14 to 45 days) from 20 August.

For Forecast detail, see below.

Chestnut Mountain Snow Forecast Highlights

When will there be fresh snow in Chestnut Mountain?

Chestnut Mountain Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (245m)
Next Snow?
There is no snow currently in the forecast for Chestnut Mountain.

Long-range Snow Outlook for Chestnut Mountain

Snowfall

Snow Line

Max 35℃
Min 20℃

Snow unlikely

Chestnut 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 Chestnut Mountain from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Thu 20	Clear sky.	Max 35℃ Min 23℃
Fri 21	Cloudy.	Max 35℃ Min 23℃
Sat 22	Clear sky.	Max 35℃ Min 21℃
Sun 23	Clear sky.	Max 35℃ Min 21℃
Mon 24	Cloudy.	Max 26℃ Min 21℃
Tue 25	Light drizzle.	Max 31℃ Min 20℃
Wed 26	Cloudy.	Max 28℃ Min 22℃

No significant snowfall is forecast for this period.

This Snow Forecast for Chestnut Mountain, United States 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 Chestnut 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.

Chestnut Mountain Snow Forecast updated at 05:42 NZST, next update expected 11:00 NZST.

Ensemble forecast for Chestnut Mountain, USA at 170m

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.

United States Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Chestnut Mountain typically experiences reliable snowfall, with an average snow depth ranging from 30 to 60 inches. For the latest snow conditions and updates, check J2Ski for accurate information.

Off-Piste Safety in Chestnut Mountain

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