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Sun Valley 7-Day Snow Forecast - 1st September 2026

Sun Valley Snow Forecast - 7 day

ECMWF IFS
GEM
GFS

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Updated 31 August 2026 17:49 PDT

7-Day Snow Forecast for Sun Valley

1-week from 1 September.

For Forecast detail, see below.

Sun Valley 7-Day Snow Forecast Highlights

When will there be fresh snow in Sun Valley?

Sun Valley Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (7,448ft)
Next Snow?
There is no snow currently in the forecast for Sun Valley.

7-Day Snow Outlook for Sun Valley

 
Snowfall

 
Snow Line

Max 77°F
Min 40°F

Snow unlikely

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Sun Valley Medium-Range (7-Day) Snow Forecast Detail

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.

Max 76°F
Min 50°F

Valley temperatures from an overnight low of 50°F to daytime highs around 76°F

Temperature at BaseTemp at Base

Tue
01

Snow unlikely

CloudCloudCloudCloud

Cloudy.

Forecast times for Sun Valley are in Denver (US/Mountain) time zone.

Max 64°F
Min 52°F

Valley temperatures from an overnight low of 52°F to daytime highs around 64°F

Temperature at BaseTemp at Base

Wed
02

Snow unlikely

ClearClearCloudLt Rain

Clear sky, cloudy, light rain showers later.

Forecast times for Sun Valley are in Denver (US/Mountain) time zone.

Max 65°F
Min 44°F

Valley temperatures from an overnight low of 44°F to daytime highs around 65°F

Temperature at BaseTemp at Base

Thu
03

Snow unlikely

CloudCloudMixedCloud

Cloudy, clear spells, cloudy later.

Forecast times for Sun Valley are in Denver (US/Mountain) time zone.

Max 54°F
Min 42°F

Valley temperatures from an overnight low of 42°F to daytime highs around 54°F

Temperature at BaseTemp at Base

Fri
04

Snow unlikely

MixedCloudCloudLt Drizzle

Clear spells, cloudy, light drizzle later.

Forecast times for Sun Valley are in Denver (US/Mountain) time zone.

Max 66°F
Min 40°F

Valley temperatures from an overnight low of 40°F to daytime highs around 66°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Sat
05

Snow unlikely

ClearClearClearCloud

Clear sky early, then cloudy later.

Forecast times for Sun Valley are in Denver (US/Mountain) time zone.

Max 73°F
Min 47°F

Valley temperatures from an overnight low of 47°F to daytime highs around 73°F

Temperature at BaseTemp at Base

Sun
06

Snow unlikely

Lt DrizzleCloudFairClear

Light drizzle first, cloudy then fair, clear sky later.

Forecast times for Sun Valley are in Denver (US/Mountain) time zone.

Max 77°F
Min 49°F

Valley temperatures from an overnight low of 49°F to daytime highs around 77°F

Temperature at BaseTemp at Base

Mon
07

Snow unlikely

ClearFairClearMixed

Clear sky first, fair then clear sky, clear spells later.

Forecast times for Sun Valley are in Denver (US/Mountain) time zone.

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 Snow Forecast updated at 17:49 PDT, next update expected 23:00 PDT.

Snow Reliability

Sun Valley typically enjoys a healthy snowpack, with average depths reaching up to 100 inches during the season. The resort's snow reliability is bolstered by consistent snowfall, making it essential to check J2Ski for the latest updates on conditions.