Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Light Rain

71°F

22°C

Humidity 96%
Wind Speed SW 17 G 28 mph
Barometer 30.02 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 6 Sep 8:55 am CDT
Extended Forecast for

Reliance SD

  • Today

    Today: A chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny and hot, with a high near 90. Southeast wind 10 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 40%.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers after 4am.  Increasing clouds, with a low around 68. Southeast wind around 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Labor Day

    Labor Day: A chance of showers and thunderstorms, mainly between 1pm and 4pm.  Partly sunny and hot, with a high near 92. Breezy, with a southeast wind 18 to 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 40%.

    High: 92 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between 7pm and 1am.  Mostly cloudy, with a low around 68. South wind 14 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Northwest wind 13 to 17 mph, with gusts as high as 25 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Northwest wind 11 to 16 mph, with gusts as high as 24 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Northwest wind 5 to 8 mph becoming southeast in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Southwest wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 85 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly before 1pm. Mostly sunny and hot, with a high near 90. Southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers after 4am. Increasing clouds, with a low around 68. Southeast wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Labor Day
A chance of showers and thunderstorms, mainly between 1pm and 4pm. Partly sunny and hot, with a high near 92. Breezy, with a southeast wind 18 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 68. South wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 84. Northwest wind 13 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 58. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 79. Northwest wind 11 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 56. Northwest wind 5 to 8 mph becoming southeast in the evening.
Thursday
Sunny, with a high near 85. Southwest wind 7 to 16 mph, with gusts as high as 26 mph.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Reliance SD
 43.88°N 99.6°W (Elev. 1781 ft)
8:21 am CDT Sep 6, 2026
9am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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