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Sun Valley Weather Forecast - 7 to 16 days - 2nd October 2026

Sun Valley Weather

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Weather Forecast for Sun Valley (5,741ft to 9,154ft)

Weather Outlook from 2 October.

Sun Valley Forecast

See below for the detailed long-range forecast, including lowest and highest temperatures, sunshine, cloud cover, wind and rain projections.

Sun Valley Weather Forecast updated at 04:41 PDT, next update expected 10:00 PDT.

Long-range Snow Outlook for Sun Valley

 
Snowfall

 
Snow Line

Max 79°F
Min 43°F

Snow unlikely

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Sun Valley Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Sun Valley from OpenMeteo(GFS)
BaseSnow and WeatherTemp
Town
Fri
02
Cloud

Cloudy.

Max 76°F
Min 43°F
Sat
03
Clear

Clear sky.

Max 75°F
Min 51°F
Sun
04
Clear

Clear sky.

Max 79°F
Min 53°F
Mon
05
Cloud

Cloudy.

Max 78°F
Min 58°F
Tue
06
Clear

Clear sky.

Max 76°F
Min 54°F
Wed
07
Clear

Clear sky.

Max 79°F
Min 53°F
Thu
08
Clear

Clear sky.

Max 78°F
Min 53°F

No significant snowfall is forecast for this period.

This Snow Forecast for Sun 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 Sun Valley, 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.

Sun Valley Weather Forecast updated at 04:41 PDT, next update expected 10:00 PDT.

Current Snow

For current snow depths and skiing conditions, see our Current Snow Report for Sun Valley.

For more information about this American Ski Resort, See Also Skiing and Snowboarding in Sun Valley .

Off-Piste Safety in Sun Valley

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