Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Hailey, Friedman Memorial Airport (KSUN)

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

Clear

64°F

18°C

Humidity 52%
Wind Speed NW 6 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 17 Aug 11:35 PM MDT
Extended Forecast for

10 Miles ENE Sun Valley ID

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 45. North northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: 45 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. Light west northwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. West wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 65. West wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Northwest wind 5 to 11 mph, with gusts as high as 18 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 45. North northwest wind 5 to 7 mph becoming southwest after midnight.
Tuesday
Partly sunny, with a high near 62. Light west northwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 44. West wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph.
Wednesday
Sunny, with a high near 65. West wind 5 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 47. Northwest wind 5 to 11 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 63.
Saturday Night
A 20 percent chance of rain. Snow level 13500 feet lowering to 12700 feet after midnight . Partly cloudy, with a low around 46.
Sunday
A 20 percent chance of showers and thunderstorms. Snow level 12700 feet. Mostly sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 45.
Monday
A 20 percent chance of showers and thunderstorms. Snow level 12400 feet rising to 13000 feet in the afternoon. Mostly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ENE Sun Valley ID
 43.75°N 114.16°W (Elev. 9780 ft)
11:31 pm MDT Aug 17, 2026
11pm MDT Aug 17, 2026-6pm MDT Aug 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database