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

Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain, and heavy mountain snow. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

50°F

10°C

Humidity 54%
Wind Speed SE 10 mph
Barometer 29.83 in (1011.1 mb)
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 16 Feb 3:56 pm CST
Extended Forecast for

Grenville SD

  • Washington's Birthday

    Washington's Birthday: Sunny, with a steady temperature around 46. East southeast wind around 10 mph.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 35. East southeast wind 11 to 17 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 47. Breezy, with an east southeast wind 17 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: 47 °F

    Breezy.
    Slight Chance
    Rain then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 32. Breezy, with an east wind 14 to 21 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain Likely
    then
    Rain/Snow
    Likely and
    Breezy

  • Wednesday

    Wednesday: A chance of snow. Mostly cloudy, with a high near 38. Breezy, with a west wind 17 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.

    High: 38 °F

    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 22. West northwest wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow, mainly after noon. Mostly cloudy, with a high near 26. Blustery, with a north wind 17 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 26 °F

    Chance Snow
    and Blustery

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 13. North northwest wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    Low: 13 °F

    Chance Snow

  • Friday

    Friday: A slight chance of snow before noon. Mostly cloudy, with a high near 22. North northwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 22 °F

    Slight Chance
    Snow then
    Partly Sunny

Detailed Forecast

Washington's Birthday
Sunny, with a steady temperature around 46. East southeast wind around 10 mph.
Tonight
Increasing clouds, with a low around 35. East southeast wind 11 to 17 mph, with gusts as high as 25 mph.
Tuesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 47. Breezy, with an east southeast wind 17 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 before 3am, then rain and snow likely. Mostly cloudy, with a low around 32. Breezy, with an east wind 14 to 21 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday
A chance of snow. Mostly cloudy, with a high near 38. Breezy, with a west wind 17 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.
Wednesday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 22. West northwest wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday
A chance of snow, mainly after noon. Mostly cloudy, with a high near 26. Blustery, with a north wind 17 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 13. North northwest wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Friday
A slight chance of snow before noon. Mostly cloudy, with a high near 22. North northwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 12.
Saturday
A slight chance of snow. Mostly sunny, with a high near 26. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 8.
Sunday
Sunny, with a high near 21.
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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:
4:36 pm CST Feb 16, 2026
Forecast Valid:
4pm CST Feb 16, 2026-6pm CST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation