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Sun Valley 7-Day Snow Forecast - 31st October 2026

Sun Valley Snow Forecast - 7 day

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Updated 31 October 2026 04:48 PDT

7-Day Snow Forecast for Sun Valley

1-week from 31 October.

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 52°F
Min 31°F

2in New Snow

Snow Line from 8,297ft to 5,771ft, with rain below.

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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 45°F
Min 39°F

Valley temperatures from an overnight low of 39°F to daytime highs around 45°F

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sat
31

New Snow

CloudCloudCloudCloud

Cloudy.

Snow Line from 7,871ft to 7,805ft, with rain below.

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

Max 48°F
Min 37°F

Valley temperatures from an overnight low of 37°F to daytime highs around 48°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sun
01

up to 1in New Snow

CloudShwrsShwrsShwrs

Cloudy early, then rain showers later.

Snow Line from 8,297ft to 7,674ft, with rain below.

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

Max 49°F
Min 31°F

Valley temperatures from an overnight low of 31°F to daytime highs around 49°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

Mon
02

Snow unlikely

CloudClearClearClear

Cloudy early, then clear sky later.

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

Max 49°F
Min 33°F

Valley temperatures from an overnight low of 33°F to daytime highs around 49°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

Tue
03

Snow unlikely

ClearCloudCloudCloud

Clear sky early, then cloudy later.

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

Max 52°F
Min 36°F

Valley temperatures from an overnight low of 36°F to daytime highs around 52°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Wed
04

Snow unlikely

CloudCloudCloudClear

Cloudy early, then clear sky later.

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

Max 49°F
Min 35°F

Valley temperatures from an overnight low of 35°F to daytime highs around 49°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

Thu
05

Snow unlikely

ClearMixedCloudCloud

Clear sky, clear spells, cloudy later.

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

Max 50°F
Min 33°F

Valley temperatures from an overnight low of 33°F to daytime highs around 50°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

Fri
06

Snow unlikely

CloudFairMixedClear

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

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

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 04:48 PDT, next update expected imminently.

How reliable is the snow in Sun Valley?

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.