Heavy Rain in the Southeast; Wintry Mix from the Plains through the Ohio Valley

A storm system will bring a number impacts to the central and eastern US. Heavy rain and thunderstorms are expected in the Gulf Coast and Deep South. Further north, a wintry mix may produce a glaze of ice from the Ozarks/Mid-South east through the Ohio Valley. Accumulating snow is expected from the central Plains east into the Upper Ohio Valley/Lower Great Lakes. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

2°F

-17°C

Humidity 88%
Wind Speed SE 9 mph
Barometer 30.14 in (1025.7 mb)
Dewpoint -1°F (-18°C)
Visibility NA
Wind Chill-13°F (-25°C)
Last update 1 Dec 7:56 am CST
Extended Forecast for

Grenville SD

  • Today

    Today: Partly sunny, with a high near 17. South southwest wind 9 to 17 mph.

    High: 17 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 1. West wind 7 to 10 mph.

    Low: 1 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after noon.  Mostly cloudy, with a high near 29. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.

    High: 29 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow, mainly before midnight.  Cloudy, with a low around 5. West southwest wind 10 to 18 mph becoming north after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 50%.

    Low: 5 °F

    Chance Snow
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 12. Northwest wind 9 to 18 mph, with gusts as high as 28 mph.

    High: 12 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -11. West northwest wind 7 to 10 mph becoming south southwest after midnight.

    Low: -11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 22. South southwest wind 11 to 15 mph, with gusts as high as 29 mph.

    High: 22 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 16. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 26. West southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 26 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 17. South southwest wind 9 to 17 mph.
Tonight
Partly cloudy, with a low around 1. West wind 7 to 10 mph.
Tuesday
A slight chance of snow after noon. Mostly cloudy, with a high near 29. Southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of snow, mainly before midnight. Cloudy, with a low around 5. West southwest wind 10 to 18 mph becoming north after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 12. Northwest wind 9 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around -11. West northwest wind 7 to 10 mph becoming south southwest after midnight.
Thursday
Mostly sunny, with a high near 22. South southwest wind 11 to 15 mph, with gusts as high as 29 mph.
Thursday Night
Mostly cloudy, with a low around 16. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Friday
Mostly cloudy, with a high near 26. West southwest wind around 11 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 11. Chance of precipitation is 20%.
Saturday
A chance of snow. Mostly cloudy, with a high near 19. Chance of precipitation is 30%.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around -3. Chance of precipitation is 20%.
Sunday
Partly sunny and cold, with a high near 8.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
7:46 am CST Dec 1, 2025
8am CST Dec 1, 2025-6pm CST Dec 7, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database