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

41°F

5°C

Humidity 35%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 18 Mar 01:00 AM MDT
Extended Forecast for

18 Miles NNW Mackay ID

  • Overnight

    Overnight: Mostly clear, with a low around 25. Breezy, with a west wind around 23 mph.

    Low: 25 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 37. Breezy, with a west wind 21 to 23 mph, with gusts as high as 31 mph.

    High: 37 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 41. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 31 mph.

    High: 41 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. Breezy, with a west southwest wind 20 to 24 mph, with gusts as high as 31 mph.

    Low: 28 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 44. Breezy.

    High: 44 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31. Breezy.

    Low: 31 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 40. Windy.

    High: 40 °F

    Mostly Sunny
    and Breezy
    then Slight
    Chance Snow
    and Windy

  • Saturday Night

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

    Low: 21 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 25. Breezy, with a west wind around 23 mph.
Wednesday
Sunny, with a high near 37. Breezy, with a west wind 21 to 23 mph, with gusts as high as 31 mph.
Wednesday Night
Mostly clear, with a low around 28. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 41. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 31 mph.
Thursday Night
Partly cloudy, with a low around 28. Breezy, with a west southwest wind 20 to 24 mph, with gusts as high as 31 mph.
Friday
Sunny, with a high near 44. Breezy.
Friday Night
Partly cloudy, with a low around 31. Breezy.
Saturday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 40. Windy.
Saturday Night
Mostly cloudy, with a low around 21. Breezy.
Sunday
Partly sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 25. Breezy.
Tuesday
A 40 percent chance of snow. Partly sunny, with a high near 36. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NNW Mackay ID
 44.14°N 113.79°W (Elev. 11106 ft)
Last Update:
12:31 am MDT Mar 18, 2026
Forecast Valid:
1am MDT Mar 18, 2026-6pm MDT Mar 24, 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