Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

19°F

-7°C

Humidity 84%
Wind Speed N 14 mph
Barometer 30.12 in (1022.5 mb)
Dewpoint 15°F (-9°C)
Visibility NA
Wind Chill5°F (-15°C)
Last update 1 Feb 7:56 pm CST
Extended Forecast for

Grenville SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 10. North wind 6 to 9 mph.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of snow before 1pm, then a chance of snow after 3pm.  Mostly cloudy, with a high near 17. Northeast wind around 6 mph becoming east southeast in the afternoon.  Chance of precipitation is 30%.

    High: 17 °F

    Partly Sunny
    then Chance
    Snow

  • Monday Night

    Monday Night: A chance of snow before midnight.  Mostly cloudy, with a low around 5. East northeast wind around 6 mph.  Chance of precipitation is 30%.

    Low: 5 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 23. East wind around 6 mph becoming west southwest in the afternoon.

    High: 23 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 15. West southwest wind 6 to 11 mph becoming north northwest after midnight.

    Low: 15 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 26. North northwest wind 8 to 11 mph becoming west southwest in the afternoon.

    High: 26 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 39. West wind 15 to 17 mph, with gusts as high as 28 mph.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. North northwest wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 10. North wind 6 to 9 mph.
Monday
A slight chance of snow before 1pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 17. Northeast wind around 6 mph becoming east southeast in the afternoon. Chance of precipitation is 30%.
Monday Night
A chance of snow before midnight. Mostly cloudy, with a low around 5. East northeast wind around 6 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 23. East wind around 6 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 15. West southwest wind 6 to 11 mph becoming north northwest after midnight.
Wednesday
Mostly cloudy, with a high near 26. North northwest wind 8 to 11 mph becoming west southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 21. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 39. West wind 15 to 17 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 18. North northwest wind 14 to 17 mph, with gusts as high as 28 mph.
Friday
Partly sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
7:37 pm CST Feb 1, 2026
8pm CST Feb 1, 2026-6pm CST Feb 8, 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