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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 WSW 12 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 01 Aug 05:55 PM MDT
Extended Forecast for

7 Miles W Lost River 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

  • Tonight

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. Breezy, with a west southwest wind 6 to 11 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 81 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. Northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. Northwest wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. South southwest wind 5 to 13 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. West northwest wind 16 to 21 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 31 mph.
Sunday
Sunny, with a high near 81. Breezy, with a west southwest wind 6 to 11 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.
Sunday Night
Mostly clear, with a low around 47. Northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph.
Monday
Sunny, with a high near 73. Northwest wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 47. South southwest wind 5 to 13 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles W Lost River ID
 43.72°N 113.67°W (Elev. 7402 ft)
Last Update:
5:30 pm MDT Aug 1, 2026
Forecast Valid:
6pm MDT Aug 1, 2026-6pm MDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

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