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

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Mostly Cloudy

45°F

7°C

Humidity 57%
Wind Speed SSE 6 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 25 Dec 01:55 PM MST
Extended Forecast for

5 Miles NNE Clayton ID

Winter Weather Advisory December 26, 02:00am until December 27, 05:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Christmas Day

    Christmas Day: A 50 percent chance of snow, mainly before 5pm. Mostly cloudy, with a high near 28. South southwest wind around 17 mph, with gusts as high as 28 mph. Total daytime snow accumulation of less than one inch possible.

    High: 28 °F

    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly after 2am. Mostly cloudy, with a low around 19. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 19 °F

    Snow Likely
    and Breezy

  • Friday

    Friday: Snow. Temperature falling to around 16 by 5pm. Wind chill values as low as -1. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 23 °F⇓

    Snow and
    Breezy

  • Friday Night

    Friday Night: Snow likely. Mostly cloudy, with a low around 10. Wind chill values as low as -8. Breezy, with a west southwest wind 21 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 10 °F

    Snow Likely
    and Breezy

  • Saturday

    Saturday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 12. Breezy, with a west wind 18 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 12 °F

    Snow Likely
    and Breezy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -4.

    Low: -4 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 13.

    High: 13 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 4.

    Low: 4 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

Detailed Forecast

Christmas Day
A 50 percent chance of snow, mainly before 5pm. Mostly cloudy, with a high near 28. South southwest wind around 17 mph, with gusts as high as 28 mph. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow likely, mainly after 2am. Mostly cloudy, with a low around 19. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow. Temperature falling to around 16 by 5pm. Wind chill values as low as -1. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow likely. Mostly cloudy, with a low around 10. Wind chill values as low as -8. Breezy, with a west southwest wind 21 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 12. Breezy, with a west wind 18 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around -4.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
Mostly clear, with a low around 4.
Monday
Sunny, with a high near 22.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Clayton ID
 44.32°N 114.37°W (Elev. 9514 ft)
Last Update:
10:31 am MST Dec 25, 2025
Forecast Valid:
2pm MST Dec 25, 2025-6pm MST Dec 31, 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