Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Winner, Bob Wiley Field Airport (KICR)

Lat: 43.39°NLon: 99.84°WElev: 2031ft.

Fair

83°F

28°C

Humidity 40%
Wind Speed S 10 mph
Barometer 30.14 in (1019.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 27 Aug 11:53 am CDT
Extended Forecast for

Winner SD

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 88. Southeast wind around 10 mph, with gusts as high as 21 mph.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 64. Southeast wind around 11 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 93. Breezy, with a south wind 14 to 23 mph, with gusts as high as 32 mph.

    High: 93 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 70. Breezy, with a south wind 14 to 21 mph, with gusts as high as 32 mph.

    Low: 70 °F

    Chance
    T-storms and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 96. Southwest wind 7 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 17 mph.

    High: 96 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 70. East wind 8 to 11 mph becoming southwest after midnight. Winds could gust as high as 18 mph.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Southeast wind around 10 mph, with gusts as high as 21 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. Southeast wind around 11 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 93. Breezy, with a south wind 14 to 23 mph, with gusts as high as 32 mph.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 70. Breezy, with a south wind 14 to 21 mph, with gusts as high as 32 mph.
Saturday
Mostly sunny, with a high near 96. Southwest wind 7 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 17 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 70. East wind 8 to 11 mph becoming southwest after midnight. Winds could gust as high as 18 mph.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Mostly cloudy, with a low around 67.
Monday
Partly sunny, with a high near 87.
Monday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64.
Tuesday
A slight chance of showers. Partly sunny, with a high near 88.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Winner SD
 43.35°N 99.88°W (Elev. 1985 ft)
9:36 am CDT Aug 27, 2026
12pm CDT Aug 27, 2026-6pm CDT Sep 2, 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