Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

2°F

-17°C

Humidity 72%
Wind Speed NW 17 mph
Barometer 30.48 in (1037.2 mb)
Dewpoint -5°F (-21°C)
Visibility NA
Wind Chill-18°F (-28°C)
Last update 29 Dec 10:56 am CST
Extended Forecast for

Grenville SD

  • Today

    Today: Mostly sunny, with a high near 15. Wind chill values as low as -18. Northwest wind 7 to 13 mph becoming west southwest in the afternoon.

    High: 15 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 20 by 4am. West southwest wind 7 to 14 mph.

    Low: 9 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. West wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow after midnight.  Mostly cloudy, with a low around 10. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.

    Low: 10 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before noon.  Cloudy, with a high near 20. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    High: 20 °F

    Chance Snow
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -2. North wind 6 to 11 mph becoming west northwest after midnight.

    Low: -2 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 14. West wind 6 to 8 mph.

    High: 14 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6. West wind around 8 mph.

    Low: 6 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 17. Northwest wind 6 to 8 mph.

    High: 17 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 15. Wind chill values as low as -18. Northwest wind 7 to 13 mph becoming west southwest in the afternoon.
Tonight
Mostly cloudy, with a temperature rising to around 20 by 4am. West southwest wind 7 to 14 mph.
Tuesday
Partly sunny, with a high near 32. West wind 14 to 16 mph, with gusts as high as 28 mph.
Tuesday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 10. Northwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Wednesday
A chance of snow before noon. Cloudy, with a high near 20. North northeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around -2. North wind 6 to 11 mph becoming west northwest after midnight.
New Year's Day
Mostly cloudy, with a high near 14. West wind 6 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 6. West wind around 8 mph.
Friday
Partly sunny, with a high near 17. Northwest wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 9.
Saturday
Partly sunny, with a high near 22.
Saturday Night
Mostly cloudy, with a low around 8.
Sunday
Partly sunny, with a high near 22.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
11:11 am CST Dec 29, 2025
11am CST Dec 29, 2025-6pm CST Jan 4, 2026
 
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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