Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

66°F

19°C

Humidity 96%
Wind Speed Calm
Barometer 29.87 in (1009.6 mb)
Dewpoint 65°F (18°C)
Visibility NA
Last update 12 Aug 2:56 am CDT
Extended Forecast for

Sisseton Municipal Airport SD

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 67. North wind around 7 mph.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 81. Calm wind becoming east southeast around 6 mph in the afternoon.  Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 9pm.  Cloudy, with a low around 61. North northeast wind around 5 mph becoming south southwest in the evening.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 78. North wind 6 to 11 mph.

    High: 78 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. Northeast wind 6 to 9 mph.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers after 1pm.  Partly sunny, with a high near 77. East southeast wind 6 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 20%.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 61. Southeast wind 8 to 14 mph.  Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers before 1pm.  Mostly cloudy, with a high near 77. West southwest wind 8 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56. North northwest wind 8 to 10 mph.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 67. North wind around 7 mph.
Wednesday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 81. Calm wind becoming east southeast around 6 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Showers and thunderstorms likely, mainly before 9pm. Cloudy, with a low around 61. North northeast wind around 5 mph becoming south southwest in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 78. North wind 6 to 11 mph.
Thursday Night
Mostly cloudy, with a low around 58. Northeast wind 6 to 9 mph.
Friday
A slight chance of showers after 1pm. Partly sunny, with a high near 77. East southeast wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 61. Southeast wind 8 to 14 mph. Chance of precipitation is 40%.
Saturday
A slight chance of showers before 1pm. Mostly cloudy, with a high near 77. West southwest wind 8 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 56. North northwest wind 8 to 10 mph.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 79.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 40%.
Tuesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sisseton Municipal Airport SD
 45.68°N 96.98°W (Elev. 1148 ft)
2:37 am CDT Aug 12, 2026
3am CDT Aug 12, 2026-6pm CDT Aug 18, 2026
 
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Additional Resources

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