Heavy Rainfall Possible in the Upper Midwest, South Texas, and Puerto Rico and the Virgin Islands

Scattered thunderstorms and heavy rainfall may bring areas of flooding though the weekend over the Upper Midwest. A tropical disturbance will bring moderate to locally heavy rain to portions of South Texas into Saturday. Tropical Storm Erin may bring isolated flash and urban flooding, landslides or mudslides, and tropical storm conditions to Puerto Rico and the U.S. Virgin Islands. Read More >

Hazardous Weather Conditions

Current conditions at

Pierre, Pierre Regional Airport (KPIR)

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

Fair

75°F

24°C

Humidity 69%
Wind Speed E 13 mph
Barometer 29.92 in (1011.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Aug 8:53 am CDT
Extended Forecast for

17 Miles WSW Onida SD

  • Today

    Today: Mostly sunny, with a high near 89. East wind around 15 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 10pm.  Mostly cloudy, with a low around 65. East wind 10 to 15 mph.  Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms.  Partly sunny, with a high near 84. East wind 10 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. East northeast wind 10 to 16 mph.  Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 84. Northeast wind around 10 mph.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 62. East northeast wind 6 to 10 mph.  Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 88. East wind 6 to 9 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. East wind 6 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 90. East wind 6 to 10 mph.

    High: 90 °F

    Hot

Detailed Forecast

Today
Mostly sunny, with a high near 89. East wind around 15 mph.
Tonight
A chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 65. East wind 10 to 15 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East northeast wind 10 to 16 mph. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. Northeast wind around 10 mph. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 62. East northeast wind 6 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 88. East wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 64. East wind 6 to 10 mph.
Tuesday
Sunny and hot, with a high near 90. East wind 6 to 10 mph.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny and hot, with a high near 90.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny and hot, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WSW Onida SD
 44.65°N 100.39°W (Elev. 1781 ft)
9:46 am CDT Aug 15, 2025
9am CDT Aug 15, 2025-6pm CDT Aug 21, 2025
 
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Additional Resources

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