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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Hazardous Weather Conditions

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

63°F

17°C

Humidity 42%
Wind Speed N 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 01 Aug 08:00 AM MDT
Extended Forecast for

22 Miles N Mackay ID

Red Flag Warning August 1, 02:00pm until August 2, 09:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Sunny, with a high near 79. South wind 6 to 11 mph becoming west southwest 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Patchy smoke after 2am. Partly cloudy, with a low around 55. West wind 7 to 17 mph, with gusts as high as 24 mph.

    Low: 55 °F

    Mostly Cloudy
    then Patchy
    Smoke

  • Sunday

    Sunday: Patchy smoke before 9am. Sunny, with a high near 73. Breezy, with a west southwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 73 °F

    Patchy Smoke
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Breezy, with a west northwest wind 14 to 22 mph, with gusts as high as 31 mph.

    Low: 45 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 63. Northwest wind 7 to 13 mph, with gusts as high as 18 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 79. South wind 6 to 11 mph becoming west southwest 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.
Tonight
Patchy smoke after 2am. Partly cloudy, with a low around 55. West wind 7 to 17 mph, with gusts as high as 24 mph.
Sunday
Patchy smoke before 9am. Sunny, with a high near 73. Breezy, with a west southwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph.
Sunday Night
Mostly clear, with a low around 45. Breezy, with a west northwest wind 14 to 22 mph, with gusts as high as 31 mph.
Monday
Sunny, with a high near 63. Northwest wind 7 to 13 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
22 Miles N Mackay ID
 44.23°N 113.53°W (Elev. 8996 ft)
Last Update:
5:31 am MDT Aug 1, 2026
Forecast Valid:
8am MDT Aug 1, 2026-6pm MDT Aug 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation