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.

25°F

-4°C

Humidity 92%
Wind Speed W 5 mph
Barometer 30.27 in (1027.4 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill19°F (-7°C)
Last update 10 Apr 3:56 am CDT
Extended Forecast for

Grenville SD

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 50. Light west southwest wind increasing to 5 to 9 mph in the morning.

    High: 50 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 36. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers. Mostly cloudy, with a high near 54. Breezy, with a south southeast wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    High: 54 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 49. South southeast wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers. Mostly sunny, with a high near 72. West wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. West wind 7 to 14 mph becoming northeast after midnight. Winds could gust as high as 23 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 1pm. Partly sunny, with a high near 64. East northeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain, mainly before 1am. Mostly cloudy, with a low around 43. East northeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 57. Northeast wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 57 °F

    Chance Rain

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 50. Light west southwest wind increasing to 5 to 9 mph in the morning.
Tonight
Increasing clouds, with a low around 36. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 54. Breezy, with a south southeast wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 49. South southeast wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 72. West wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 43. West wind 7 to 14 mph becoming northeast after midnight. Winds could gust as high as 23 mph.
Monday
A chance of showers after 1pm. Partly sunny, with a high near 64. East northeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Monday Night
A chance of rain, mainly before 1am. Mostly cloudy, with a low around 43. East northeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 57. Northeast wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.
Wednesday
A slight chance of rain. Partly sunny, with a high near 62. Chance of precipitation is 20%.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 40. Chance of precipitation is 20%.
Thursday
A slight chance of rain. Mostly sunny, with a high near 57. Breezy. 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:
4:36 am CDT Apr 10, 2026
Forecast Valid:
4am CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation