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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

63°F

17°C

Humidity 18%
Wind Speed E 3 MPH
Barometer 29.61 in (1002.71 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 21 Apr 10:05 PM MDT
Extended Forecast for

Challis ID

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 5am. Partly cloudy, with a low around 39. South wind 6 to 9 mph.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain. High near 53. South southeast wind 6 to 11 mph becoming west southwest 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%.

    High: 53 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely before midnight, then rain and snow likely between midnight and 3am, then snow likely after 3am. Cloudy, with a low around 34. West southwest wind 6 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A 50 percent chance of snow. Partly sunny, with a high near 51. West wind 6 to 15 mph, with gusts as high as 26 mph. Little or no snow accumulation expected.

    High: 51 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27. Northwest wind 5 to 15 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Friday

    Friday: A 40 percent chance of snow. Partly sunny, with a high near 47. Little or no snow accumulation expected.

    High: 47 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly after 5am. Partly cloudy, with a low around 39. South wind 6 to 9 mph.
Wednesday
Rain. High near 53. South southeast wind 6 to 11 mph becoming west southwest 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%.
Wednesday Night
Rain likely before midnight, then rain and snow likely between midnight and 3am, then snow likely after 3am. Cloudy, with a low around 34. West southwest wind 6 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
A 50 percent chance of snow. Partly sunny, with a high near 51. West wind 6 to 15 mph, with gusts as high as 26 mph. Little or no snow accumulation expected.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27. Northwest wind 5 to 15 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.
Friday
A 40 percent chance of snow. Partly sunny, with a high near 47. Little or no snow accumulation expected.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
A slight chance of snow between noon and 3pm, then a slight chance of rain after 3pm. Partly sunny, with a high near 53. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 56.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly sunny, with a high near 61.
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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:
5:31 pm MDT Apr 21, 2026
Forecast Valid:
10pm MDT Apr 21, 2026-6pm MDT Apr 28, 2026
 
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