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.

68°F

20°C

Humidity 55%
Wind Speed NW 7 mph
Barometer 30.03 in (1016.0 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 20 Jun 10:56 am CDT
Extended Forecast for

4 Miles N Grenville SD

  • Today

    Today: Sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. East wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers after 3pm. Mostly cloudy, with a high near 69. East wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly between 8pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 52. Northeast wind 5 to 9 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 73. East northeast wind around 6 mph becoming south southeast in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then showers between 1am and 4am, then showers and possibly a thunderstorm after 4am. Low around 55. South wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 70. Southwest wind 9 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    High: 70 °F

    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51. Northwest wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 73. Light and variable wind.
Tonight
Mostly cloudy, with a low around 54. East wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday
A slight chance of showers after 3pm. Mostly cloudy, with a high near 69. East wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers, mainly between 8pm and 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 52. Northeast wind 5 to 9 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 73. East northeast wind around 6 mph becoming south southeast in the afternoon.
Monday Night
A chance of showers and thunderstorms before 1am, then showers between 1am and 4am, then showers and possibly a thunderstorm after 4am. Low around 55. South wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 70. Southwest wind 9 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Tuesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51. Northwest wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 69. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Grenville SD
 45.52°N 97.4°W (Elev. 1850 ft)
Last Update:
11:01 am CDT Jun 20, 2026
Forecast Valid:
11am CDT Jun 20, 2026-6pm CDT Jun 26, 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