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.

Mostly Cloudy

36°F

2°C

Humidity 93%
Wind Speed NW 9 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 24 Dec 08:47 AM MST
Extended Forecast for

18 Miles ENE Sun Valley ID

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

    NOW until 5:00pm Thu

    Winter Storm Warning

  • Today

    High: 28 °F

    Heavy Snow
    and Breezy

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Steady temperature around 27. South southwest wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

    Low: 27 °F

    Heavy Snow

  • Christmas Day

    Christmas Day: Snow. Temperature falling to around 22 by 4pm. South southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 25 °F⇓

    Snow

  • Thursday Night

    Thursday Night: Snow. Low around 18. South southwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 18 °F

    Snow

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 20. Breezy, with a west southwest wind around 22 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 20 °F

    Breezy. Heavy
    Snow then
    Snow Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 6. Breezy. New snow accumulation of less than a half inch possible.

    Low: 6 °F

    Chance Snow
    and Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 12.

    High: 12 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 1.

    Low: 1 °F

    Mostly Clear

Detailed Forecast

Today
Snow, mainly after 11am. The snow could be heavy at times. High near 28. Breezy, with a south wind 17 to 24 mph, with gusts as high as 37 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. Steady temperature around 27. South southwest wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.
Christmas Day
Snow. Temperature falling to around 22 by 4pm. South southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow. Low around 18. South southwest wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday
Snow. The snow could be heavy at times. High near 20. Breezy, with a west southwest wind around 22 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 6. Breezy. New snow accumulation of less than a half inch possible.
Saturday
Mostly sunny, with a high near 12.
Saturday Night
Mostly clear, with a low around 1.
Sunday
Mostly sunny, with a high near 14.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 20.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 25.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles ENE Sun Valley ID
 43.81°N 114.02°W (Elev. 9849 ft)
Last Update:
4:31 am MST Dec 24, 2025
Forecast Valid:
9am MST Dec 24, 2025-6pm MST Dec 30, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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