Severe Thunderstorms in the Southeast U.S.; Critical Fire Weather in the Central and Southern Plains

Scattered severe thunderstorms remain possible this afternoon and evening across parts of southern Georgia into north and west-central Florida. Both damaging winds and a few tornadoes may occur. Gusty to high winds and low relative humidity will bring critical fire weather to the central and southern Plains today into Tuesday. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

52°F

11°C

Humidity 43%
Wind Speed S 8 mph
Barometer 29.69 in (1006.0 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Wind Chill49°F (9°C)
Last update 15 Feb 5:56 pm CST
Extended Forecast for

Grenville SD

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 31. South wind 6 to 9 mph becoming north after midnight.

    Low: 31 °F

    Decreasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 49. Northeast wind 6 to 10 mph becoming east southeast in the afternoon.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 34. East southeast wind 10 to 17 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain likely, mainly after noon.  Mostly cloudy, with a high near 49. Breezy, with an east southeast wind 18 to 23 mph, with gusts as high as 36 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Breezy.
    Slight Chance
    Rain then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before midnight.  Mostly cloudy, with a low around 32. Breezy, with an east southeast wind 16 to 20 mph becoming west after midnight.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Rain Likely
    and Breezy

  • Wednesday

    Wednesday: A chance of rain and snow before noon, then a chance of snow.  Mostly sunny, with a high near 39. Breezy, with a west wind 20 to 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 50%.

    High: 39 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A slight chance of snow before midnight.  Partly cloudy, with a low around 18. Blustery, with a west northwest wind 18 to 22 mph.  Chance of precipitation is 20%.

    Low: 18 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow.  Mostly cloudy, with a high near 23. Blustery, with a north northwest wind 18 to 21 mph, with gusts as high as 29 mph.  Chance of precipitation is 40%.

    High: 23 °F

    Chance Snow
    and Blustery

  • Thursday Night

    Thursday Night: A chance of snow.  Mostly cloudy, with a low around 9. North northwest wind around 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 40%.

    Low: 9 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 31. South wind 6 to 9 mph becoming north after midnight.
Washington's Birthday
Sunny, with a high near 49. Northeast wind 6 to 10 mph becoming east southeast in the afternoon.
Monday Night
Increasing clouds, with a low around 34. East southeast wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday
Rain likely, mainly after noon. Mostly cloudy, with a high near 49. Breezy, with an east southeast wind 18 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 32. Breezy, with an east southeast wind 16 to 20 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain and snow before noon, then a chance of snow. Mostly sunny, with a high near 39. Breezy, with a west wind 20 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.
Wednesday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 18. Blustery, with a west northwest wind 18 to 22 mph. Chance of precipitation is 20%.
Thursday
A chance of snow. Mostly cloudy, with a high near 23. Blustery, with a north northwest wind 18 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 9. North northwest wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Friday
A slight chance of snow before noon. Partly sunny, with a high near 20. Chance of precipitation is 20%.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 20%.
Saturday
A slight chance of snow. Mostly sunny, with a high near 23. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 4.
Sunday
Sunny, with a high near 20.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.37°W (Elev. 1795 ft)
6:36 pm CST Feb 15, 2026
6pm CST Feb 15, 2026-6pm CST Feb 22, 2026
 
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Additional Resources

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