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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Clear

73°F

23°C

Humidity 12%
Wind Speed SSW 12 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 20 Mar 05:47 PM MDT
Extended Forecast for

Sun Valley ID

  • Tonight

    Tonight: Mostly clear, with a low around 40. South southwest wind around 6 mph becoming north northeast in the evening.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62. North wind 5 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. West northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. North wind around 6 mph becoming light and variable.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Southwest wind around 6 mph becoming light and variable in the evening.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 40. South southwest wind around 6 mph becoming north northeast in the evening.
Saturday
Mostly sunny, with a high near 62. North wind 5 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
Mostly clear, with a low around 26. West northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 56. North wind around 6 mph becoming light and variable.
Sunday Night
Partly cloudy, with a low around 30. Southwest wind around 6 mph becoming light and variable in the evening.
Monday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sun Valley ID
 43.69°N 114.33°W (Elev. 6385 ft)
Last Update:
5:31 pm MDT Mar 20, 2026
Forecast Valid:
6pm MDT Mar 20, 2026-6pm MDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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