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.

Overcast

52°F

11°C

Humidity 50%
Wind Speed NW 5 MPH
Barometer 29.61 in (1002.71 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 22 Apr 04:20 AM MDT
Extended Forecast for

22 Miles NNW Mackay ID

Winter Weather Advisory until April 23, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until April 23, 06:00am

    NOW until 6:00am Thu

    Winter Weather Advisory

  • Overnight

    Low: 23 °F

    Chance Snow
    Showers and
    Breezy

  • Wednesday

    Wednesday: Snow showers, mainly before 3pm. Some thunder is also possible.  Temperature falling to around 20 by noon. Breezy, with a west wind 25 to 28 mph, with gusts as high as 41 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 25 °F

    Snow Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 1am. The snow could be heavy at times.  Steady temperature around 20. Wind chill values as low as -2. Breezy, with a west wind 23 to 26 mph, with gusts as high as 39 mph.  Chance of precipitation is 80%. New snow accumulation of 5 to 9 inches possible.

    Low: 20 °F

    Heavy Snow
    and Breezy

  • Thursday

    Thursday: Snow showers, mainly after noon. The snow could be heavy at times. Some thunder is also possible.  High near 22. Blustery, with a west wind 22 to 26 mph, with gusts as high as 39 mph.  Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 22 °F

    Chance Snow
    Showers and
    Breezy then
    Heavy Snow
    and Blustery

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before midnight.  Mostly cloudy, with a low around 12. Blustery, with a west northwest wind 17 to 26 mph, with gusts as high as 38 mph.  Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

    Low: 12 °F

    Snow Showers
    Likely and
    Blustery

  • Friday

    Friday: Snow showers likely.  Mostly cloudy, with a high near 20. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 20 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow showers, mainly before midnight.  Mostly cloudy, with a low around 14. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A 40 percent chance of snow.  Partly sunny, with a high near 26.

    High: 26 °F

    Chance Snow

Detailed Forecast

Overnight
A 30 percent chance of snow showers, mainly before 5am. Mostly cloudy, with a low around 23. Breezy, with a south wind around 26 mph, with gusts as high as 36 mph. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow showers, mainly before 3pm. Some thunder is also possible. Temperature falling to around 20 by noon. Breezy, with a west wind 25 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow showers, mainly before 1am. The snow could be heavy at times. Steady temperature around 20. Wind chill values as low as -2. Breezy, with a west wind 23 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of 5 to 9 inches possible.
Thursday
Snow showers, mainly after noon. The snow could be heavy at times. Some thunder is also possible. High near 22. Blustery, with a west wind 22 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 12. Blustery, with a west northwest wind 17 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow showers likely. Mostly cloudy, with a high near 20. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 14. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 26.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.
Sunday
A chance of snow before noon, then snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 27. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 18.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 27.
Monday Night
A 20 percent chance of snow. Partly cloudy, with a low around 19.
Tuesday
A 30 percent chance of snow. Mostly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNW Mackay ID
 44.18°N 113.79°W (Elev. 10712 ft)
2:41 am MDT Apr 22, 2026
4am MDT Apr 22, 2026-6pm MDT Apr 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database