National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

Lat: 43.5°NLon: 114.3°WElev: 5318.0ft.

light rain,mist

39°F

4°C

Humidity 100%
Wind Speed NW 6 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 39°F (4°C)
Visibility 5.00 mi
Wind Chill35°F (2°C)
Last update 24 Dec 12:47 PM MST
Extended Forecast for

11 Miles NE Sun Valley ID

Winter Storm Warning December 24, 01:09pm until December 25, 05:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 24, 01:09pm until December 25, 05:00pm

    NOW until 5:00pm Thu

    Winter Storm Warning

  • This Afternoon

    High: 29 °F

    Heavy Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Low around 22. South southwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.

    Low: 22 °F

    Heavy Snow

  • Christmas Day

    Christmas Day: Snow likely before 11am, then snow likely after 1pm. The snow could be heavy at times. Cloudy, with a temperature falling to around 16 by 5pm. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 4 to 8 inches possible.

    High: 23 °F⇓

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow. The snow could be heavy at times. Low around 16. Wind chill values as low as zero. South wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    Low: 16 °F

    Heavy Snow

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 20. Breezy, with a southwest wind 21 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 20 °F

    Heavy Snow
    and Breezy

  • Friday Night

    Friday Night: Snow. Low around 5. Breezy. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 5 °F

    Snow and
    Breezy

  • Saturday

    Saturday: A 40 percent chance of snow. Mostly cloudy and cold, with a high near 9. New snow accumulation of less than one inch possible.

    High: 9 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around -4.

    Low: -4 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Snow. The snow could be heavy at times. High near 29. South wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 11 to 17 inches possible.
Tonight
Snow. The snow could be heavy at times. Low around 22. South southwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.
Christmas Day
Snow likely before 11am, then snow likely after 1pm. The snow could be heavy at times. Cloudy, with a temperature falling to around 16 by 5pm. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 4 to 8 inches possible.
Thursday Night
Snow. The snow could be heavy at times. Low around 16. Wind chill values as low as zero. South wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Friday
Snow. The snow could be heavy at times. High near 20. Breezy, with a southwest wind 21 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Friday Night
Snow. Low around 5. Breezy. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Saturday
A 40 percent chance of snow. Mostly cloudy and cold, with a high near 9. New snow accumulation of less than one inch possible.
Saturday Night
Mostly clear, with a low around -4.
Sunday
Mostly sunny, with a high near 15.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 20.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Sun Valley ID
 43.77°N 114.17°W (Elev. 10220 ft)
Last Update:
12:30 pm MST Dec 24, 2025
Forecast Valid:
1pm MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation