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

Cold Temperatures Continue in the Southeast; Snow in the Central Appalachians and Ohio Valley; Rain and Thunderstorms in the Southeast

Cold temperatures will persist across Florida and the Southeast through Tuesday, then milder conditions are expected beginning Wednesday. A frontal system is expected to bring wintry precipitation to the Central Appalachians and portions of the Mid-Atlantic Tuesday into Wednesday, meanwhile, showers and thunderstorms are expected along the Gulf Coast and Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

11°F

-12°C

Humidity 81%
Wind Speed N 12 mph
Barometer 30.25 in (1028.6 mb)
Dewpoint 6°F (-14°C)
Visibility NA
Wind Chill-4°F (-20°C)
Last update 2 Feb 9:56 pm CST
Extended Forecast for

Grenville SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 5. Northeast wind 5 to 9 mph becoming light north northeast after midnight.

    Low: 5 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 22. Calm wind becoming south around 6 mph in the morning.

    High: 22 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of snow after midnight. Mostly cloudy, with a steady temperature around 21. West southwest wind 6 to 13 mph becoming north northwest after midnight. Chance of precipitation is 20%.

    Low: 21 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 28. North northwest wind 8 to 13 mph becoming west southwest in the afternoon.

    High: 28 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22. Southwest wind 8 to 17 mph, with gusts as high as 26 mph.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 41. West northwest wind around 16 mph, with gusts as high as 25 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20. North northwest wind 15 to 17 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 28. North wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 28 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 13. North northeast wind 7 to 11 mph becoming south after midnight.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 5. Northeast wind 5 to 9 mph becoming light north northeast after midnight.
Tuesday
Mostly cloudy, with a high near 22. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
A slight chance of snow after midnight. Mostly cloudy, with a steady temperature around 21. West southwest wind 6 to 13 mph becoming north northwest after midnight. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 28. North northwest wind 8 to 13 mph becoming west southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 22. Southwest wind 8 to 17 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 41. West northwest wind around 16 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 20. North northwest wind 15 to 17 mph, with gusts as high as 25 mph.
Friday
Partly sunny, with a high near 28. North wind 7 to 15 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 13. North northeast wind 7 to 11 mph becoming south after midnight.
Saturday
Mostly sunny, with a high near 30.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 40.
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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:
9:36 pm CST Feb 2, 2026
Forecast Valid:
10pm CST Feb 2, 2026-6pm CST Feb 9, 2026
 
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Additional Resources

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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