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.

37°F

3°C

Humidity 67%
Wind Speed NW 16 mph
Barometer 29.76 in (1008.3 mb)
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 9 Mar 9:56 am CDT
Extended Forecast for

Grenville SD

  • Today

    Today: Mostly sunny, with a high near 44. North northeast wind 7 to 11 mph.

    High: 44 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly before 1am. Increasing clouds, with a low around 24. Northeast wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Snow Likely

  • Tuesday

    Tuesday: A chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. Mostly cloudy, with a high near 36. Northeast wind around 9 mph. Chance of precipitation is 30%.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of snow, mainly before 1am. Cloudy, with a low around 23. North wind 8 to 10 mph. Chance of precipitation is 50%.

    Low: 23 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. West northwest wind 8 to 13 mph becoming south after midnight.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow before 1pm, then rain and snow likely. Mostly cloudy, with a high near 47. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 47 °F

    Slight Chance
    Snow then
    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 23. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Chance
    Rain/Snow and
    Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 35. North northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 35 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 44. North northeast wind 7 to 11 mph.
Tonight
Snow likely, mainly before 1am. Increasing clouds, with a low around 24. Northeast wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday
A chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. Mostly cloudy, with a high near 36. Northeast wind around 9 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of snow, mainly before 1am. Cloudy, with a low around 23. North wind 8 to 10 mph. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 37. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 25. West northwest wind 8 to 13 mph becoming south after midnight.
Thursday
A slight chance of snow before 1pm, then rain and snow likely. Mostly cloudy, with a high near 47. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 23. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 35. North northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Friday Night
A chance of snow. Cloudy, with a low around 23. Chance of precipitation is 50%.
Saturday
A chance of snow. Cloudy, with a high near 37. Chance of precipitation is 50%.
Saturday Night
Snow likely. Cloudy, with a low around 14. Chance of precipitation is 70%.
Sunday
A chance of snow. Mostly cloudy, with a high near 23. Blustery. Chance of precipitation is 40%.
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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:
10:31 am CDT Mar 9, 2026
Forecast Valid:
10am CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation