Sun Valley 48-Hour Snow Forecast
Updated 31 October 2026 22:48 AEDT
2-Day Forecast for Sun Valley
48-hours from 31 October.
See below for forecast detail
Sun Valley Snow Forecast updated at 22:48 AEDT, next update expected imminently.
Forecast for today in Sun Valley
Max 7℃
Min 4℃
Valley temperatures from an overnight low of 4℃ to daytime highs around 7℃
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
31
up to 1cm New Snow
Cloudy.
Snow Line from 2,399m to 2,379m, with rain below.
Forecast times for Sun Valley are in Denver (US/Mountain) time zone.
Forecast for tomorrow in Sun Valley
Max 9℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 9℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sun
01
up to 3cm New Snow
Cloudy early, then rain showers later.
Snow Line from 2,529m to 2,339m, with rain below.
Forecast times for Sun Valley are in Denver (US/Mountain) time zone.
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48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Sat | 00:00 | | Cloudy. | 5℃ | SW Light | 15% | |
| Sat | 01:00 | | Cloudy. | 5℃ | SW Light | 15% | |
| Sat | 02:00 | | Cloudy. | 5℃ | SW Calm | 5% | |
| Sat | 03:00 | | Cloudy. | 5℃ | SW Light | 10% | |
| Sat | 04:00 | | Cloudy. | 5℃ | SW Light | 5% | |
| Sat | 05:00 | | Cloudy. | 5℃ | SW Light | 5% | |
| Sat | 06:00 | | Cloudy. | 4℃ | SW Light | 5% | |
| Sat | 07:00 | | Cloudy. | 5℃ | SW Light | 5% | |
| Sat | 08:00 | | Cloudy. | 4℃ | SW Calm | 5% | |
| Sat | 09:00 |  | Light snow at altitude. Lt drizzle below. | 5℃ | SW Calm | 5% | |
| Sat | 10:00 | | Cloudy. | 6℃ | SW Light | 10% | |
| Sat | 11:00 | | Cloudy. | 7℃ | SW Calm | 20% | |
| Sat | 12:00 | | Cloudy. | 7℃ | SW Light | 15% | |
| Sat | 13:00 | | Cloudy. | 7℃ | SW Light | 20% | |
| Sat | 14:00 | | Cloudy. | 7℃ | SW Light | 20% | |
| Sat | 15:00 | | Cloudy. | 7℃ | SW Light | 20% | |
| Sat | 16:00 |  | Cloudy at altitude. Mixed below. | 7℃ | SW Light | 15% | |
| Sat | 17:00 | | Cloudy. | 7℃ | SW Light | 15% | |
| Sat | 18:00 | | Light snow at altitude. Lt rain below. | 7℃ | SW Light | 30% | |
| Sat | 19:00 |  | up to 1cm New Snow | Heavy snow showers at altitude. Hvy shwrs below. | 5℃ | SW Light | 35% |
| Sat | 20:00 | | Fog at altitude. Cloud below. | 5℃ | SW Light | 30% | |
| Sat | 21:00 | | Fog at altitude. Cloud below. | 5℃ | SW Light | 35% | |
| Sat | 22:00 | | Cloudy. | 4℃ | SW Light | 50% | |
| Sat | 23:00 | | Cloudy. | 6℃ | SW Breeze | 65% | |
| Sun | 00:00 |  | Light snow at altitude. Drizzle below. | 6℃ | SW Breeze | 65% | |
| Sun | 01:00 | | Clear spells at altitude. Hvy drizzle below. | 5℃ | SW Breeze | 75% | |
| Sun | 01:00 | | Light snow at altitude. Drizzle below. | 5℃ | SW Breeze | 70% | |
| Sun | 02:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 5℃ | SW Breeze | 75% | |
| Sun | 03:00 | | Light snow at altitude. Lt drizzle below. | 5℃ | SW Light | 70% | |
| Sun | 04:00 | | Clear spells at altitude. Drizzle below. | 5℃ | SW Light | 65% | |
| Sun | 05:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 5℃ | SW Light | 60% | |
| Sun | 06:00 | | Light snow at altitude. Drizzle below. | 5℃ | SW Light | 50% | |
| Sun | 07:00 | | Light snow at altitude. Lt drizzle below. | 5℃ | SW Light | 50% | |
| Sun | 08:00 | | up to 1cm New Snow | Heavy snow showers at altitude. Hvy shwrs below. | 5℃ | SW Light | 60% |
| Sun | 09:00 | | Clear spells at altitude. Drizzle below. | 5℃ | SW Light | 65% | |
| Sun | 10:00 | | Heavy snow showers at altitude. Hvy drizzle below. | 6℃ | SW Light | 65% | |
| Sun | 11:00 | | Heavy snow showers at altitude. Drizzle below. | 6℃ | SW Light | 65% | |
| Sun | 12:00 | | Light snow at altitude. Lt drizzle below. | 7℃ | SW Light | 55% | |
| Sun | 13:00 | | Light drizzle. | 8℃ | SW Light | 45% | |
| Sun | 14:00 | | Cloudy. | 8℃ | SW Light | 40% | |
| Sun | 15:00 | | Light snow at altitude. Lt rain below. | 9℃ | SW Light | 45% | |
| Sun | 16:00 | | Light snow at altitude. Lt rain below. | 9℃ | SW Light | 85% | |
| Sun | 17:00 | | Light snow at altitude. Lt rain below. | 8℃ | SW Light | 85% | |
| Sun | 18:00 | | Cloudy. | 6℃ | SW Breeze | 10% | |
| Sun | 19:00 | | Cloudy. | 6℃ | SW Breeze | 10% | |
| Sun | 20:00 | | Cloudy. | 6℃ | SW Breeze | 10% | |
| Sun | 21:00 | | Cloudy. | 5℃ | SW Breeze | 10% | |
| Sun | 22:00 | | Cloudy. | 4℃ | SW Breeze | 10% | |
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.
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.
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.