Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Clear

63°F

17°C

Humidity 45%
Wind Speed WNW 8 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Aug 11:15 PM MDT
Extended Forecast for

3 Miles N Sun Valley ID

  • Tonight

    Tonight: Mostly clear, with a low around 44. North wind 6 to 8 mph.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. West northwest wind around 6 mph becoming north northeast after midnight.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. North wind 5 to 10 mph becoming south in the afternoon.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. West southwest wind 5 to 8 mph becoming north after midnight.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 82.

    High: 82 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before midnight.  Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 44. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 49. West northwest wind around 6 mph becoming north northeast after midnight.
Thursday
Sunny, with a high near 89. North wind 5 to 10 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 52. West southwest wind 5 to 8 mph becoming north after midnight.
Friday
Mostly sunny, with a high near 90.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 53.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 82.
Saturday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 46.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Tuesday
A 30 percent chance of rain and thunderstorms. Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Sun Valley ID
 43.71°N 114.34°W (Elev. 6004 ft)
11:31 pm MDT Aug 18, 2026
11pm MDT Aug 18, 2026-6pm MDT Aug 25, 2026
 
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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