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

Pierre, Pierre Regional Airport (KPIR)

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

Fair

86°F

30°C

Humidity 37%
Wind Speed E 17 G 26 mph
Barometer 30.00 in (1014.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 27 Aug 4:53 pm CDT
Extended Forecast for

Vivian SD

  • Tonight

    Tonight: Mostly clear, with a low around 63. Southeast wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 94. Breezy, with a south southeast wind 14 to 22 mph, with gusts as high as 33 mph.

    High: 94 °F

    Hot and
    Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly before midnight.  Partly cloudy, with a low around 68. Breezy, with a south southeast wind 10 to 20 mph becoming southwest after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers and
    Breezy then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 95. West northwest wind around 9 mph.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 68. Southeast wind 9 to 13 mph becoming west northwest after midnight.  Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 92. North northwest wind 9 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 92 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. South southwest wind around 11 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88. Northwest wind 11 to 14 mph becoming south in the afternoon. Winds could gust as high as 22 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. South southeast wind around 9 mph.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Southeast wind 11 to 18 mph, with gusts as high as 28 mph.
Friday
Mostly sunny and hot, with a high near 94. Breezy, with a south southeast wind 14 to 22 mph, with gusts as high as 33 mph.
Friday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 68. Breezy, with a south southeast wind 10 to 20 mph becoming southwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny and hot, with a high near 95. West northwest wind around 9 mph.
Saturday Night
A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. Southeast wind 9 to 13 mph becoming west northwest after midnight. Chance of precipitation is 20%.
Sunday
Mostly sunny and hot, with a high near 92. North northwest wind 9 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 65. South southwest wind around 11 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Monday
Mostly sunny, with a high near 88. Northwest wind 11 to 14 mph becoming south in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Partly cloudy, with a low around 63. South southeast wind around 9 mph.
Tuesday
Partly sunny, with a high near 89.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Wednesday
Mostly sunny and hot, with a high near 91.
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 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Vivian SD
 43.92°N 100.29°W (Elev. 1880 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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