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

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

Windy

27°F

-3°C

Humidity 89%
Wind Speed N 28 G 36 mph
Barometer 30.03 in (1018.2 mb)
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill11°F (-12°C)
Last update 26 Mar 8:56 am CDT
Extended Forecast for

Grenville SD

  • Today

    Today: A chance of flurries with a slight chance of snow before 2pm, then a chance of flurries between 2pm and 4pm. Mostly cloudy, with a high near 32. Breezy, with a north wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    High: 32 °F

    Slight Chance
    Snow and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 18. North wind 8 to 15 mph becoming west northwest after midnight.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 35. Northwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 35 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. West northwest wind 7 to 16 mph becoming south after midnight. Winds could gust as high as 28 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 56. Breezy, with a south wind 16 to 22 mph, with gusts as high as 31 mph.

    High: 56 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. South wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. South southeast wind 10 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. North northeast wind 10 to 13 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54. East northeast wind 13 to 17 mph, with gusts as high as 25 mph.

    High: 54 °F

    Partly Sunny

Detailed Forecast

Today
A chance of flurries with a slight chance of snow before 2pm, then a chance of flurries between 2pm and 4pm. Mostly cloudy, with a high near 32. Breezy, with a north wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 18. North wind 8 to 15 mph becoming west northwest after midnight.
Friday
Partly sunny, then gradually becoming sunny, with a high near 35. Northwest wind 10 to 15 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 24. West northwest wind 7 to 16 mph becoming south after midnight. Winds could gust as high as 28 mph.
Saturday
Mostly sunny, with a high near 56. Breezy, with a south wind 16 to 22 mph, with gusts as high as 31 mph.
Saturday Night
Partly cloudy, with a low around 37. South wind 11 to 13 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 66. South southeast wind 10 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 31. North northeast wind 10 to 13 mph.
Monday
Partly sunny, with a high near 54. East northeast wind 13 to 17 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 62. Chance of precipitation is 30%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
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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:
9:41 am CDT Mar 26, 2026
Forecast Valid:
9am CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation