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

64°F

18°C

Humidity 18%
Wind Speed S 9 MPH
Barometer 29.61 in (1002.71 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 21 Apr 09:55 PM MDT
Extended Forecast for

9 Miles N Mackay ID

Winter Weather Advisory April 22, 12:00am until April 23, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: A 40 percent chance of snow after 3am.  Mostly cloudy, with a low around 22. Windy, with a south wind 26 to 30 mph, with gusts as high as 41 mph.  Little or no snow accumulation expected.

    Low: 22 °F

    Mostly Cloudy
    and Windy
    then Chance
    Snow and
    Breezy

  • Wednesday

    Wednesday: Snow showers before 3pm, then snow, mainly between 3pm and 5pm. The snow could be heavy at times. Some thunder is also possible.  High near 24. Windy, with a south southwest wind 24 to 31 mph becoming west in the afternoon. Winds could gust as high as 40 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 24 °F

    Heavy Snow
    and Windy

  • Wednesday Night

    Wednesday Night: Snow.  Low around 17. Wind chill values as low as -1. Breezy, with a west wind 26 to 29 mph, with gusts as high as 37 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Snow and
    Breezy

  • Thursday

    Thursday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 24. Wind chill values as low as -2. Blustery, with a west northwest wind 23 to 29 mph, with gusts as high as 37 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 24 °F

    Snow Likely
    and Blustery

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 13. Windy, with a northwest wind 24 to 30 mph, with gusts as high as 39 mph.  Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

    Low: 13 °F

    Snow Likely
    and Windy

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 20. Blustery.  Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 20 °F

    Snow Likely
    and Blustery

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly before midnight.  Mostly cloudy, with a low around 13. New snow accumulation of 1 to 2 inches possible.

    Low: 13 °F

    Chance Snow

  • Saturday

    Saturday: A 50 percent chance of snow.  Partly sunny, with a high near 23.

    High: 23 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before midnight.  Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

Detailed Forecast

Tonight
A 40 percent chance of snow after 3am. Mostly cloudy, with a low around 22. Windy, with a south wind 26 to 30 mph, with gusts as high as 41 mph. Little or no snow accumulation expected.
Wednesday
Snow showers before 3pm, then snow, mainly between 3pm and 5pm. The snow could be heavy at times. Some thunder is also possible. High near 24. Windy, with a south southwest wind 24 to 31 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Wednesday Night
Snow. Low around 17. Wind chill values as low as -1. Breezy, with a west wind 26 to 29 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow likely, mainly after noon. Mostly cloudy, with a high near 24. Wind chill values as low as -2. Blustery, with a west northwest wind 23 to 29 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 13. Windy, with a northwest wind 24 to 30 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow likely. Mostly cloudy, with a high near 20. Blustery. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 13. New snow accumulation of 1 to 2 inches possible.
Saturday
A 50 percent chance of snow. Partly sunny, with a high near 23.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 17.
Sunday
A 50 percent chance of snow, mainly after noon. Partly sunny, with a high near 26.
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 18.
Tuesday
A 30 percent chance of snow. Mostly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles N Mackay ID
 44.05°N 113.62°W (Elev. 11401 ft)
5:31 pm MDT Apr 21, 2026
10pm MDT Apr 21, 2026-6pm MDT Apr 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database