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Sun Valley, Idaho Weather Forecast
Sun Valley, Idaho Weather
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Weather Forecast for Sun Valley, Idaho : Blaine County
Issued: 5:31 am MDT Oct 31, 2025 Latitude: 43.6971294 Longitude: -114.3517172 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Sunny on Today Mostly Cloudy on Tonight Mostly Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday 20% chance of snow on Tuesday 20% chance of snow on Wednesday 40% chance of rain & snow on Thursday
High: 54°F Low: 32°F High: 59°F High: 55°F High: 58°F High: 52°F High: 54°F High: 47°F
Low: 36°F Low: 30°F Low: 34°F Low: 33°F Low: 31°F  
Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Sunny Snow Snow Rain & Snow
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Current Conditions at
HAILEY - (KSUN)
30°
Clear
as of 8:47 AM MDST
Rel. Humidity: 80%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
8 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
STANLEY RANGER STN - (KSNT)
18°
Clear
as of 8:51 AM MDST
Rel. Humidity: 92%
Dew Point: 16°F
Pressure: 30.29 in.
Wind Data
Calm
Current Conditions at
CHALLIS - (KLLJ)
27°
Clear
as of 8:55 AM MDST
Rel. Humidity: 79%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
3 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
TWIN FALLS - (KTWF)
34°
Clear
as of 8:53 AM MDST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
8 MPH
190° South
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 54. North northwest wind around 6 mph becoming calm in the afternoon.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 32. Calm wind becoming north around 5 mph after midnight.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 59. Calm wind becoming south around 6 mph in the afternoon.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 36. South wind around 6 mph becoming west in the evening.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 55. West wind 7 to 9 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 30.

Sunny on Monday Monday... Sunny, with a high near 58.

20% chance of snow Monday Night Monday Night... A 20 percent chance of showers after midnight. Snow level 9400 feet lowering to 8900 feet after midnight . Partly cloudy, with a low around 34.

20% chance of snow Tuesday Tuesday... A 20 percent chance of showers before noon. Snow level 8200 feet. Partly sunny, with a high near 52.

20% chance of snow Tuesday Night Tuesday Night... A 20 percent chance of showers after midnight. Snow level 8500 feet. Mostly cloudy, with a low around 33.

20% chance of snow Wednesday Wednesday... A 20 percent chance of showers. Snow level 8800 feet. Partly sunny, with a high near 54.

70% chance of snow Wednesday Night Wednesday Night... Showers likely. Snow level 8700 feet lowering to 7900 feet after midnight . Mostly cloudy, with a low around 31. Chance of precipitation is 70%.

40% chance of rain & snow Thursday Thursday... A chance of rain and snow showers. Snow level 7400 feet lowering to 6800 feet in the afternoon . Partly sunny, with a high near 47. Chance of precipitation is 40%.

Current Radar Image


Sun Almanac for Sun Valley, Idaho
Sunrise: 08:13 AM
Sunset: 6:29 PM
Civil Sunrise:07:43 AM
Civil Sunset: 6:59 PM
Nautical Sunrise: 07:09 AM
Nautical Sunset: 7:33 PM
Astro Sunrise: 06:36 AM
Astro Sunset: 8:06 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.