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

43°F

6°C

Humidity 28%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 17 Mar 11:30 PM MDT
Extended Forecast for

21 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 28. West southwest wind around 18 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. West southwest wind 18 to 20 mph, with gusts as high as 32 mph.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. West southwest wind 16 to 20 mph, with gusts as high as 28 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 46. West southwest wind 15 to 18 mph, with gusts as high as 31 mph.

    High: 46 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. West southwest wind 17 to 21 mph, with gusts as high as 31 mph.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 49. Breezy.

    High: 49 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 43. Breezy.

    High: 43 °F

    Mostly Sunny
    then Slight
    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21. Breezy.

    Low: 21 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 28. West southwest wind around 18 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 42. West southwest wind 18 to 20 mph, with gusts as high as 32 mph.
Wednesday Night
Partly cloudy, with a low around 29. West southwest wind 16 to 20 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 46. West southwest wind 15 to 18 mph, with gusts as high as 31 mph.
Thursday Night
Mostly clear, with a low around 31. West southwest wind 17 to 21 mph, with gusts as high as 31 mph.
Friday
Sunny, with a high near 49. Breezy.
Friday Night
Partly cloudy, with a low around 33. Breezy.
Saturday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 43. Breezy.
Saturday Night
Partly cloudy, with a low around 21. Breezy.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 38.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 26. Breezy.
Tuesday
A 40 percent chance of snow. Mostly cloudy, with a high near 36. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NNW Mackay ID
 44.18°N 113.79°W (Elev. 10712 ft)
Last Update:
11:31 pm MDT Mar 17, 2026
Forecast Valid:
11pm MDT Mar 17, 2026-6pm MDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation