Sun Valley 48-Hour Snow Forecast
Updated 21 September 2026 00:42 CDT
2-Day Forecast for Sun Valley
48-hours from 21 September.
See below for forecast detail
Sun Valley Snow Forecast updated at 00:42 CDT, next update expected 06:00 CDT.
Forecast for today in Sun Valley
Max 21℃
Min 8℃
Valley temperatures from an overnight low of 8℃ to daytime highs around 21℃
Temperature at BaseTemp at Base
Mon
21
Snow unlikely
Clear sky.
Forecast times for Sun Valley are in Denver (US/Mountain) time zone.
Forecast for tomorrow in Sun Valley
Max 22℃
Min 11℃
Valley temperatures from an overnight low of 11℃ to daytime highs around 22℃
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Cloudy.
Forecast times for Sun Valley are in Denver (US/Mountain) time zone.
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Partner Offers
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Mon | 00:00 | | Clear sky. | 10℃ | SW Light | 0% | |
| Mon | 01:00 | | Clear sky. | 10℃ | SW Light | 0% | |
| Mon | 02:00 | | Clear sky. | 9℃ | SW Light | 0% | |
| Mon | 03:00 | | Clear sky. | 9℃ | SW Calm | 0% | |
| Mon | 04:00 | | Clear sky. | 8℃ | SW Light | 0% | |
| Mon | 05:00 | | Clear sky. | 8℃ | SW Light | 0% | |
| Mon | 06:00 | | Clear sky. | 8℃ | SW Light | 0% | |
| Mon | 07:00 | | Clear sky. | 8℃ | SW Light | 0% | |
| Mon | 08:00 | | Clear sky. | 8℃ | SW Light | 0% | |
| Mon | 09:00 | | Clear sky. | 10℃ | SW Light | 0% | |
| Mon | 10:00 | | Clear sky. | 13℃ | SW Light | 0% | |
| Mon | 11:00 | | Clear sky. | 15℃ | SW Light | 0% | |
| Mon | 12:00 | | Clear sky. | 17℃ | SW Light | 0% | |
| Mon | 13:00 | | Clear sky. | 19℃ | SW Light | 0% | |
| Mon | 14:00 | | Clear sky. | 20℃ | SW Light | 0% | |
| Mon | 15:00 | | Clear sky. | 21℃ | SW Light | 0% | |
| Mon | 16:00 | | Cloudy. | 21℃ | SW Light | 5% | |
| Mon | 17:00 | | Clear sky. | 21℃ | SW Light | 5% | |
| Mon | 18:00 | | Cloudy at altitude. Clear below. | 21℃ | SW Light | 5% | |
| Mon | 19:00 |  | Clear sky at altitude. Fair below. | 19℃ | SW Light | 5% | |
| Mon | 20:00 | | Cloudy. | 16℃ | SW Breeze | 0% | |
| Mon | 21:00 | | Cloudy. | 15℃ | SW Light | 0% | |
| Mon | 22:00 | | Cloudy. | 14℃ | SW Calm | 0% | |
| Mon | 23:00 | | Cloudy. | 13℃ | SW Calm | 0% | |
| Tue | 00:00 | | Cloudy. | 13℃ | SW Light | 0% | |
| Tue | 01:00 | | Cloudy. | 12℃ | SW Light | 0% | |
| Tue | 02:00 | | Cloudy. | 12℃ | SW Breeze | 0% | |
| Tue | 03:00 | | Cloudy. | 11℃ | SW Light | 0% | |
| Tue | 04:00 | | Cloudy. | 12℃ | SW Light | 0% | |
| Tue | 05:00 | | Cloudy. | 11℃ | SW Breeze | 0% | |
| Tue | 06:00 | | Cloudy. | 12℃ | SW Light | 0% | |
| Tue | 07:00 | | Cloudy. | 12℃ | SW Light | 0% | |
| Tue | 08:00 | | Cloudy. | 12℃ | SW Light | 0% | |
| Tue | 09:00 | | Cloudy. | 13℃ | SW Light | 0% | |
| Tue | 10:00 | | Cloudy. | 15℃ | SW Light | 0% | |
| Tue | 11:00 | | Cloudy. | 16℃ | SW Light | 5% | |
| Tue | 12:00 | | Cloudy. | 16℃ | SW Light | 5% | |
| Tue | 13:00 | | Cloudy. | 20℃ | SW Breeze | 35% | |
| Tue | 14:00 | | Cloudy. | 22℃ | SW Breeze | 35% | |
| Tue | 15:00 | | Clear spells. | 22℃ | SW Breeze | 35% | |
| Tue | 16:00 | | Cloudy. | 21℃ | SW Light | 35% | |
| Tue | 17:00 | | Cloudy. | 17℃ | SW Breeze | 35% | |
| Tue | 18:00 | | Cloudy. | 15℃ | SW Breeze | 35% | |
| Tue | 19:00 | | Light snow at altitude. Lt rain below. | 14℃ | SW Light | 20% | |
| Tue | 20:00 | | Cloudy. | 13℃ | SW Light | 20% | |
| Tue | 21:00 | | Cloudy. | 11℃ | SW Light | 20% | |
| Tue | 22:00 | | Cloudy. | 11℃ | SW Light | 20% | |
| Tue | 23:00 | | Cloudy. | 11℃ | SW Light | 20% | |
Snow Forecast near Sun Valley
Snow forecasts for nearby ski areas.
Snow Forecasts for other Ski Resorts near Sun Valley are not available.
Sun Valley Snow
For current snow depths and skiing conditions, see our Current Snow Report for Sun Valley.
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 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.
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.