Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Current conditions at

Pierre, Pierre Regional Airport (KPIR)

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

Fair

78°F

26°C

Humidity 76%
Wind Speed NW 13 mph
Barometer 29.79 in (1007.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Aug 10:53 am CDT
Extended Forecast for

Vivian SD

  • Today

    Today: Mostly sunny and hot, with a high near 93. North wind 7 to 9 mph.

    High: 93 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 9pm and midnight.  Mostly cloudy, with a low around 66. East northeast wind 8 to 11 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 93. South southwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 93 °F

    Hot

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 1am.  Cloudy, then gradually becoming partly cloudy, with a low around 62. South wind 9 to 16 mph becoming north northwest after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 86. Northwest wind 8 to 11 mph becoming southeast in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 63. East wind around 8 mph.  Chance of precipitation is 30%.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 86. East southeast wind 7 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 62. East southeast wind 13 to 15 mph.  Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny and hot, with a high near 91. Southeast wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 91 °F

    Hot

Detailed Forecast

Today
Mostly sunny and hot, with a high near 93. North wind 7 to 9 mph.
Tonight
A slight chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 66. East northeast wind 8 to 11 mph becoming south southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny and hot, with a high near 93. South southwest wind 8 to 13 mph, with gusts as high as 23 mph.
Sunday Night
A slight chance of showers and thunderstorms before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 62. South wind 9 to 16 mph becoming north northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 86. Northwest wind 8 to 11 mph becoming southeast in the afternoon.
Monday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. East wind around 8 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. East southeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. East southeast wind 13 to 15 mph. Chance of precipitation is 20%.
Wednesday
Sunny and hot, with a high near 91. Southeast wind 13 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
Thursday
Mostly sunny and hot, with a high near 91.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny and hot, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Vivian SD
 43.92°N 100.29°W (Elev. 1880 ft)
11:01 am CDT Aug 29, 2026
11am CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
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Additional Resources

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