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.

32°F

0°C

Humidity 64%
Wind Speed NW 8 mph
Barometer 30.16 in (1023.1 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 9 Apr 9:56 am CDT
Extended Forecast for

Grenville SD

  • Today

    Today: Snow, mainly after 2pm. High near 36. Northwest wind 6 to 9 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 36 °F

    Mostly Cloudy
    then Snow

  • Tonight

    Tonight: A chance of snow, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 24. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 50. Southwest wind 5 to 8 mph.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 36. South southeast wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of rain. Cloudy, with a high near 57. Breezy, with a south southeast wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.

    High: 57 °F

    Chance Rain
    and Breezy

  • Saturday Night

    Saturday Night: A chance of rain. Mostly cloudy, with a low around 51. Breezy, with a south southeast wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    Low: 51 °F

    Chance Rain
    and Breezy

  • Sunday

    Sunday: A chance of rain. Mostly sunny, with a high near 73. Breezy, with a south wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    High: 73 °F

    Chance Rain
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. West wind 9 to 14 mph becoming north northeast after midnight. Winds could gust as high as 23 mph.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 58. North northeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 58 °F

    Chance Rain

Detailed Forecast

Today
Snow, mainly after 2pm. High near 36. Northwest wind 6 to 9 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
A chance of snow, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 24. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 30%.
Friday
Sunny, with a high near 50. Southwest wind 5 to 8 mph.
Friday Night
Increasing clouds, with a low around 36. South southeast wind 5 to 14 mph, with gusts as high as 23 mph.
Saturday
A chance of rain. Cloudy, with a high near 57. Breezy, with a south southeast wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 51. Breezy, with a south southeast wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Sunday
A chance of rain. Mostly sunny, with a high near 73. Breezy, with a south wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 45. West wind 9 to 14 mph becoming north northeast after midnight. Winds could gust as high as 23 mph.
Monday
A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 58. North northeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 52. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Grenville SD
 45.46°N 97.4°W (Elev. 1821 ft)
Last Update:
9:37 am CDT Apr 9, 2026
Forecast Valid:
10am CDT Apr 9, 2026-6pm CDT Apr 15, 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