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

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Fair

84°F

29°C

Humidity 43%
Wind Speed SE 15 G 18 mph
Barometer 30.05 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 27 Aug 4:55 pm CDT
Extended Forecast for

4 Miles NNW Highmore SD

  • Tonight

    Tonight: Mostly clear, with a low around 61. East southeast wind 11 to 15 mph.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 88. Breezy, with a south southeast wind 15 to 21 mph, with gusts as high as 31 mph.

    High: 88 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms between 10pm and 4am, then a slight chance of showers.  Increasing clouds, with a low around 66. Southeast wind 13 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy through mid morning, then becoming sunny, with a high near 88. South wind around 9 mph becoming north northeast in the morning.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 66. East northeast wind 10 to 13 mph.

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 88. North northeast wind around 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. East wind around 10 mph becoming northwest after midnight.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. North northwest wind 11 to 14 mph becoming south southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. East southeast wind around 9 mph.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 61. East southeast wind 11 to 15 mph.
Friday
Partly sunny, with a high near 88. Breezy, with a south southeast wind 15 to 21 mph, with gusts as high as 31 mph.
Friday Night
A chance of showers and thunderstorms between 10pm and 4am, then a slight chance of showers. Increasing clouds, with a low around 66. Southeast wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Saturday
Mostly cloudy through mid morning, then becoming sunny, with a high near 88. South wind around 9 mph becoming north northeast in the morning.
Saturday Night
Mostly cloudy, with a low around 66. East northeast wind 10 to 13 mph.
Sunday
Mostly sunny, with a high near 88. North northeast wind around 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 64. East wind around 10 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 84. North northwest wind 11 to 14 mph becoming south southwest in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Partly cloudy, with a low around 61. East southeast wind around 9 mph.
Tuesday
Partly sunny, with a high near 84.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Highmore SD
 44.57°N 99.45°W (Elev. 1788 ft)
5:06 pm CDT Aug 27, 2026
5pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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