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

Hailey, Friedman Memorial Airport (KSUN)

Lat: 43.5°NLon: 114.3°WElev: 5318.0ft.

Clear

93°F

34°C

Humidity 13%
Wind Speed SW 9 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 01 Aug 02:55 PM MDT
Extended Forecast for

11 Miles SW Mackay ID

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

    NOW until 9:00pm Sun

    Red Flag Warning

  • This Afternoon

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Breezy, with a west wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 33 mph.

    Low: 47 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Breezy, with a west southwest wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 73 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 34 mph.

    Low: 37 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 65. Northwest wind 7 to 13 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 79. West southwest wind around 21 mph, with gusts as high as 32 mph.
Tonight
Partly cloudy, with a low around 47. Breezy, with a west wind 17 to 22 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 33 mph.
Sunday
Sunny, with a high near 73. Breezy, with a west southwest wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 37 mph.
Sunday Night
Mostly clear, with a low around 37. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 34 mph.
Monday
Sunny, with a high near 65. Northwest wind 7 to 13 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SW Mackay ID
 43.8°N 113.75°W (Elev. 9177 ft)
Last Update:
2:36 pm MDT Aug 1, 2026
Forecast Valid:
4pm MDT Aug 1, 2026-6pm MDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation