National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

-1°F

-18°C

Humidity 68%
Wind Speed SW 3 mph
Barometer 30.38 in (1033.7 mb)
Dewpoint -9°F (-23°C)
Visibility NA
Last update 7 Dec 10:56 am CST
Extended Forecast for

Grenville SD

  • Today

    Today: A slight chance of snow after 5pm. Mostly cloudy, with a high near 11. Southeast wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 11 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Snow, mainly before 11pm. Temperature rising to around 15 by 3am. South southeast wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 11 °F⇑

    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 31. South southwest wind 10 to 16 mph, with gusts as high as 29 mph.

    High: 31 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. West wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow likely before 9am, then rain, possibly mixed with snow. High near 38. Breezy, with a south southwest wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 10. Blustery, with a northwest wind 20 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.

    Low: 10 °F

    Blustery.
    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 14. Northwest wind 9 to 18 mph, with gusts as high as 29 mph.

    High: 14 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of snow, mainly after midnight. Mostly cloudy, with a low around 2. North wind 8 to 11 mph becoming east in the evening. Chance of precipitation is 40%.

    Low: 2 °F

    Chance Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy and cold, with a high near 10. North northeast wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    High: 10 °F

    Chance Snow

Detailed Forecast

Today
A slight chance of snow after 5pm. Mostly cloudy, with a high near 11. Southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Tonight
Snow, mainly before 11pm. Temperature rising to around 15 by 3am. South southeast wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
Mostly cloudy, with a high near 31. South southwest wind 10 to 16 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 24. West wind 10 to 15 mph, with gusts as high as 26 mph.
Tuesday
Snow likely before 9am, then rain, possibly mixed with snow. High near 38. Breezy, with a south southwest wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday Night
A chance of rain and snow before 9pm, then a chance of snow. Mostly cloudy, with a low around 10. Blustery, with a northwest wind 20 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.
Wednesday
Mostly cloudy, with a high near 14. Northwest wind 9 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
A chance of snow, mainly after midnight. Mostly cloudy, with a low around 2. North wind 8 to 11 mph becoming east in the evening. Chance of precipitation is 40%.
Thursday
A chance of snow. Mostly cloudy and cold, with a high near 10. North northeast wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around -10. Chance of precipitation is 20%.
Friday
Partly sunny and cold, with a high near -2.
Friday Night
Mostly cloudy, with a low around -12.
Saturday
Mostly cloudy and cold, with a high near 3.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
Last Update:
10:36 am CST Dec 7, 2025
Forecast Valid:
11am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation