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.

52°F

11°C

Humidity 50%
Wind Speed NW 6 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill50°F (10°C)
Last update 12 May 9:56 pm CDT
Extended Forecast for

6 Miles E Grenville SD

  • Tonight

    Tonight: Mostly clear, with a low around 42. North northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Light and variable wind becoming west northwest around 6 mph in the afternoon.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy blowing dust after 4am. Increasing clouds, with a low around 50. Breezy, with a southeast wind 7 to 12 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 36 mph.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Blowing Dust
    and Breezy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 4pm. Patchy blowing dust before 4pm. Partly sunny, with a high near 77. Breezy, with a south wind 22 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 48. West southwest wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.

    Low: 48 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73. Breezy, with a west wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 73 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 32 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Northwest wind 6 to 10 mph becoming east in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 47. East wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

    Low: 47 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 42. North northwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 72. Light and variable wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
Patchy blowing dust after 4am. Increasing clouds, with a low around 50. Breezy, with a southeast wind 7 to 12 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 36 mph.
Thursday
A chance of showers, with thunderstorms also possible after 4pm. Patchy blowing dust before 4pm. Partly sunny, with a high near 77. Breezy, with a south wind 22 to 29 mph, with gusts as high as 45 mph. Chance of precipitation is 30%.
Thursday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 48. West southwest wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 10%.
Friday
Sunny, with a high near 73. Breezy, with a west wind 14 to 19 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph.
Friday Night
Mostly clear, with a low around 45. West wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 32 mph.
Saturday
Mostly sunny, with a high near 70. Northwest wind 6 to 10 mph becoming east in the afternoon.
Saturday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 47. East wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Sunday
Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
Monday
A slight chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles E Grenville SD
 45.48°N 97.25°W (Elev. 1900 ft)
Last Update:
10:36 pm CDT May 12, 2026
Forecast Valid:
10pm CDT May 12, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation