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 34%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 18 Mar 12:55 AM MDT
Extended Forecast for

22 Miles NNW Mackay ID

  • Overnight

    Overnight: Mostly clear, with a low around 32. Breezy, with a west wind 23 to 25 mph.

    Low: 32 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 43. Breezy, with a west wind 22 to 25 mph, with gusts as high as 34 mph.

    High: 43 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 31 mph.

    Low: 35 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 46. Breezy, with a west southwest wind 20 to 24 mph, with gusts as high as 34 mph.

    High: 46 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. Breezy, with a west wind 22 to 25 mph, with gusts as high as 36 mph.

    Low: 33 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 50. Breezy.

    High: 50 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Windy.

    Low: 36 °F

    Partly Cloudy
    and Windy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 45. Windy.

    High: 45 °F

    Mostly Sunny
    and Breezy
    then Slight
    Chance Snow
    and Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. Windy.

    Low: 26 °F

    Mostly Cloudy
    and Windy
    then Partly
    Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 32. Breezy, with a west wind 23 to 25 mph.
Wednesday
Sunny, with a high near 43. Breezy, with a west wind 22 to 25 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 35. Breezy, with a west southwest wind 21 to 23 mph, with gusts as high as 31 mph.
Thursday
Sunny, with a high near 46. Breezy, with a west southwest wind 20 to 24 mph, with gusts as high as 34 mph.
Thursday Night
Mostly clear, with a low around 33. Breezy, with a west wind 22 to 25 mph, with gusts as high as 36 mph.
Friday
Sunny, with a high near 50. Breezy.
Friday Night
Partly cloudy, with a low around 36. Windy.
Saturday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 45. Windy.
Saturday Night
Mostly cloudy, with a low around 26. Windy.
Sunday
Mostly sunny, with a high near 39.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 39.
Monday Night
Mostly cloudy, with a low around 31. Breezy.
Tuesday
A 30 percent chance of snow. Partly sunny, with a high near 40. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNW Mackay ID
 44.21°N 113.77°W (Elev. 10039 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

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation