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.

Mostly Cloudy

54°F

12°C

Humidity 37%
Wind Speed N 0 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 22 Apr 03:20 AM MDT
Extended Forecast for

23 Miles NW Mackay ID

  • Overnight

    Overnight: A chance of rain showers before 5am, then a slight chance of rain and snow showers.  Mostly cloudy, with a low around 35. South wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow showers, becoming all snow after 7am. Some thunder is also possible.  High near 43. South wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly before midnight.  Mostly cloudy, with a low around 29. West northwest wind 9 to 18 mph, with gusts as high as 31 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 29 °F

    Snow Showers
    Likely

  • Thursday

    Thursday: Snow showers likely, mainly after noon. Some thunder is also possible.  Mostly cloudy, with a high near 41. West northwest wind 9 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 41 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers.  Mostly cloudy, with a low around 24. Northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 31 mph.  New snow accumulation of around an inch possible.

    Low: 24 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 50 percent chance of snow showers.  Mostly cloudy, with a high near 38. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight.  Partly cloudy, with a low around 24. Little or no snow accumulation expected.

    Low: 24 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after noon.  Mostly sunny, with a high near 43.

    High: 43 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 28.

    Low: 28 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Overnight
A chance of rain showers before 5am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 35. South wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
Rain and snow showers, becoming all snow after 7am. Some thunder is also possible. High near 43. South wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 29. West northwest wind 9 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Thursday
Snow showers likely, mainly after noon. Some thunder is also possible. Mostly cloudy, with a high near 41. West northwest wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 24. Northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 31 mph. New snow accumulation of around an inch possible.
Friday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 38. New snow accumulation of less than a half inch possible.
Friday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 24. Little or no snow accumulation expected.
Saturday
A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 43.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 28.
Sunday
A slight chance of snow before noon, then a chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 44. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 28.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
A 20 percent chance of snow. Mostly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
23 Miles NW Mackay ID
 44.1°N 113.99°W (Elev. 6660 ft)
2:41 am MDT Apr 22, 2026
3am 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