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.

Mostly Cloudy

63°F

17°C

Humidity 11%
Wind Speed SW 8 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 17 Mar 07:20 PM MDT
Extended Forecast for

21 Miles N Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 35. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 54. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 54 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56. West southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. West southwest wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Snow level 9600 feet lowering to 9000 feet in the afternoon . Mostly sunny, with a high near 55. Breezy.

    High: 55 °F

    Mostly Sunny
    then Slight
    Chance Rain
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 35. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 54. West wind 10 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 36. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 56. West southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 38. West southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A 20 percent chance of rain after noon. Snow level 9600 feet lowering to 9000 feet in the afternoon . Mostly sunny, with a high near 55. Breezy.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 30.
Monday
A slight chance of rain and snow. Mostly sunny, with a high near 50. Chance of precipitation is 20%.
Monday Night
A slight chance of rain and snow. Snow level 7900 feet. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Tuesday
A chance of rain and snow. Snow level 7400 feet. Mostly cloudy, with a high near 49. Breezy. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles N Mackay ID
 44.22°N 113.62°W (Elev. 7218 ft)
Last Update:
1:30 pm MDT Mar 17, 2026
Forecast Valid:
7pm MDT Mar 17, 2026-6pm MDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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