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 >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

41°F

5°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 25 Dec 11:35 AM MST
Extended Forecast for

Challis ID

  • Christmas Day

    Christmas Day: A slight chance of rain between 2pm and 5pm. Mostly sunny, with a high near 45. South wind 5 to 9 mph. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A chance of rain and snow before 2am, then a chance of snow. Mostly cloudy, with a low around 28. South wind 6 to 8 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 28 °F

    Chance
    Rain/Snow

  • Friday

    Friday: Snow, mainly before 11am. High near 40. Southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow then
    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 20. Southwest wind around 10 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

    Low: 20 °F

    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow. Partly sunny, with a high near 30. West southwest wind around 9 mph. Little or no snow accumulation expected.

    High: 30 °F

    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 24.

    High: 24 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

Detailed Forecast

Christmas Day
A slight chance of rain between 2pm and 5pm. Mostly sunny, with a high near 45. South wind 5 to 9 mph. Chance of precipitation is 20%.
Tonight
A chance of rain and snow before 2am, then a chance of snow. Mostly cloudy, with a low around 28. South wind 6 to 8 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday
Snow, mainly before 11am. High near 40. Southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 20. Southwest wind around 10 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 30. West southwest wind around 9 mph. Little or no snow accumulation expected.
Saturday Night
Partly cloudy, with a low around 4.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Mostly clear, with a low around 5.
Monday
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Challis ID
 44.53°N 114.23°W (Elev. 5184 ft)
Last Update:
10:31 am MST Dec 25, 2025
Forecast Valid:
11am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation