Swiss Valley 7-Day Snow Forecast

Swiss Valley Long-Range Snow Forecast Updated today

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Updated 17 September 2026 00:48 CDT

Long-Range Snow Forecast for Swiss Valley

Long-range (14 to 45 days) from 17 September.

For Forecast detail, see below.

Swiss Valley Snow Forecast Highlights

When will there be fresh snow in Swiss Valley?

Swiss Valley Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (332m)
Next Snow?
There is no snow currently in the forecast for Swiss Valley.

Long-range Snow Outlook for Swiss Valley

Snowfall

Snow Line

Max 37℃
Min 10℃

Snow unlikely

Swiss Valley 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 Swiss Valley from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Thu 17	Clear sky.	Max 36℃ Min 23℃
Fri 18	Clear sky.	Max 37℃ Min 23℃
Sat 19	Cloudy.	Max 34℃ Min 22℃
Sun 20	Cloudy.	Max 33℃ Min 21℃
Mon 21	Light drizzle.	Max 28℃ Min 17℃
Tue 22	Cloudy.	Max 19℃ Min 13℃
Wed 23	Fair.	Max 25℃ Min 10℃

No significant snowfall is forecast for this period.

This Snow Forecast for Swiss Valley, 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 Swiss Valley, 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.

Swiss Valley Snow Forecast updated at 00:48 CDT, next update expected 06:00 CDT.

Ensemble forecast for Swiss Valley, USA at 297m

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

Swiss Valley typically enjoys a snow depth of 50-75 inches throughout the season, with consistent snowfall from December to March. To stay updated on the latest conditions, check J2Ski for real-time snow reports.

Off-Piste Safety in Swiss Valley

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