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 >

Hazardous Weather Conditions

Current conditions at

Pierre, Pierre Regional Airport (KPIR)

Lat: 44.38°NLon: 100.29°WElev: 1742ft.

A Few Clouds

69°F

21°C

Humidity 84%
Wind Speed W 3 mph
Barometer 29.97 in (1013.7 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 Aug 12:53 am CDT
Extended Forecast for

11 Miles W Stephan SD

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly between 2am and 5am.  Mostly cloudy, with a low around 60. East southeast wind 6 to 8 mph becoming north.  Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms, mainly between 11am and 1pm.  Cloudy through mid morning, then gradual clearing, with a high near 79. East northeast wind around 8 mph becoming southwest in the afternoon.  Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. South southeast wind 7 to 11 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. South wind 8 to 10 mph becoming northwest in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. North wind around 7 mph becoming east northeast after midnight.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Northeast wind 7 to 11 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. East northeast wind 8 to 11 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 80. East wind around 14 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 61. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 28 mph.  Chance of precipitation is 40%.

    Low: 61 °F

    Partly Cloudy
    then Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly between 2am and 5am. Mostly cloudy, with a low around 60. East southeast wind 6 to 8 mph becoming north. Chance of precipitation is 40%.
Wednesday
A slight chance of showers and thunderstorms, mainly between 11am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 79. East northeast wind around 8 mph becoming southwest in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 60. South southeast wind 7 to 11 mph.
Thursday
Sunny, with a high near 86. South wind 8 to 10 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 62. North wind around 7 mph becoming east northeast after midnight.
Friday
Sunny, with a high near 84. Northeast wind 7 to 11 mph.
Friday Night
Mostly clear, with a low around 61. East northeast wind 8 to 11 mph.
Saturday
Mostly sunny, with a high near 80. East wind around 14 mph.
Saturday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 81. Breezy. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Stephan SD
 44.28°N 99.68°W (Elev. 2011 ft)
12:36 am CDT Aug 19, 2026
1am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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