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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

73°F

23°C

Humidity 6%
Wind Speed W 9 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Last update 18 Mar 03:55 PM MDT
Extended Forecast for

11 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 31. West wind 17 to 20 mph, with gusts as high as 24 mph.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 43. West wind 16 to 21 mph, with gusts as high as 28 mph.

    High: 43 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. West wind 18 to 21 mph, with gusts as high as 26 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 45. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 30 mph.

    High: 45 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. Breezy, with a west southwest wind 17 to 25 mph, with gusts as high as 33 mph.

    Low: 32 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 41. Windy.

    High: 41 °F

    Partly Sunny
    and Windy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 21. Windy.

    Low: 21 °F

    Slight Chance
    Snow and
    Windy then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. Breezy.

    Low: 24 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 31. West wind 17 to 20 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 43. West wind 16 to 21 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 31. West wind 18 to 21 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 45. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 32. Breezy, with a west southwest wind 17 to 25 mph, with gusts as high as 33 mph.
Saturday
Partly sunny, with a high near 41. Windy.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 21. Windy.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Partly cloudy, with a low around 24. Breezy.
Monday
Partly sunny, with a high near 36. Breezy.
Monday Night
Mostly cloudy, with a low around 25. Breezy.
Tuesday
A slight chance of rain and snow. Partly sunny, with a high near 40. Breezy. Chance of precipitation is 20%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Windy. Chance of precipitation is 30%.
Wednesday
A 40 percent chance of snow. Partly sunny, with a high near 38. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Mackay ID
 44.06°N 113.71°W (Elev. 10755 ft)
Last Update:
12:30 pm MDT Mar 18, 2026
Forecast Valid:
4pm MDT Mar 18, 2026-6pm MDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation