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

Early Heat Wave in the West; Fire Concerns in the 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. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Clear

34°F

1°C

Humidity 69%
Wind Speed NW 9 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 17 Mar 07:47 AM MDT
Extended Forecast for

Sun Valley ID

  • Today

    Today: Sunny, with a high near 59. North wind 6 to 8 mph becoming south southeast in the morning.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. North wind around 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 64. North northeast wind around 7 mph becoming west southwest in the afternoon.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36. West wind around 6 mph becoming north northwest after midnight.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66. North northwest wind 5 to 7 mph becoming west southwest in the afternoon.

    High: 66 °F

    Sunny

  • Thursday Night

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

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 59. North wind 6 to 8 mph becoming south southeast in the morning.
Tonight
Partly cloudy, with a low around 34. North wind around 6 mph.
Wednesday
Sunny, with a high near 64. North northeast wind around 7 mph becoming west southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 36. West wind around 6 mph becoming north northwest after midnight.
Thursday
Sunny, with a high near 66. North northwest wind 5 to 7 mph becoming west southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Partly 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 am MDT Mar 17, 2026
Forecast Valid:
9am MDT Mar 17, 2026-6pm MDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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