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

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

23°F

-5°C

Humidity 85%
Wind Speed NW 8 mph
Barometer 30.09 in (1021.7 mb)
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill14°F (-10°C)
Last update 11 Mar 2:56 am CDT
Extended Forecast for

Grenville SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 20. North northwest wind 3 to 5 mph.

    Low: 20 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow between 2pm and 4pm. Mostly sunny, with a high near 37. North northwest wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 37 °F

    Mostly Sunny
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 22. Northwest wind 6 to 10 mph becoming south after midnight.

    Low: 22 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of snow before 1pm, then rain likely. Mostly cloudy, with a high near 45. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Slight Chance
    Snow then
    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 21. Windy, with a west southwest wind 28 to 34 mph becoming northwest after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Rain/Snow and
    Windy

  • Friday

    Friday: Mostly cloudy, with a high near 32. Northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 32 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow, mainly after 1am. Mostly cloudy, with a low around 22. Northeast wind 7 to 9 mph becoming southeast in the evening. Chance of precipitation is 40%.

    Low: 22 °F

    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly after 1pm. Cloudy, with a high near 32. East wind 10 to 16 mph. Chance of precipitation is 60%.

    High: 32 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Snow likely. Cloudy, with a low around 14. Blustery, with an east wind 18 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 14 °F

    Snow Likely
    and Blustery

Detailed Forecast

Overnight
Mostly cloudy, with a low around 20. North northwest wind 3 to 5 mph.
Wednesday
A chance of snow between 2pm and 4pm. Mostly sunny, with a high near 37. North northwest wind 6 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
Increasing clouds, with a low around 22. Northwest wind 6 to 10 mph becoming south after midnight.
Thursday
A slight chance of snow before 1pm, then rain likely. Mostly cloudy, with a high near 45. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
A slight chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 21. Windy, with a west southwest wind 28 to 34 mph becoming northwest after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 20%.
Friday
Mostly cloudy, with a high near 32. Northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Friday Night
A chance of snow, mainly after 1am. Mostly cloudy, with a low around 22. Northeast wind 7 to 9 mph becoming southeast in the evening. Chance of precipitation is 40%.
Saturday
Snow likely, mainly after 1pm. Cloudy, with a high near 32. East wind 10 to 16 mph. Chance of precipitation is 60%.
Saturday Night
Snow likely. Cloudy, with a low around 14. Blustery, with an east wind 18 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Sunday
A chance of snow, mainly before 1pm. Mostly cloudy, with a high near 23. Blustery. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 5. Blustery.
Monday
Mostly sunny, with a high near 21.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 20%.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.4°W (Elev. 1821 ft)
Last Update:
3:34 am CDT Mar 11, 2026
Forecast Valid:
3am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation