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.

59°F

15°C

Humidity 67%
Wind Speed NW 7 mph
Barometer 29.99 in (1014.4 mb)
Dewpoint 48°F (9°C)
Visibility NA
Last update 19 Jun 11:56 pm CDT
Extended Forecast for

4 Miles N Grenville SD

  • Overnight

    Overnight: Mostly clear, with a low around 48. West northwest wind 3 to 5 mph.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73. North northwest wind around 5 mph becoming light and variable in the afternoon.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 54. East wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 71. East wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 71 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53. East northeast wind 5 to 9 mph.

    Low: 53 °F

    Mostly Cloudy

  • Monday

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

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 55. South southeast wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 55 °F

    Chance
    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 71. Southwest wind 9 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51. West northwest wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 48. West northwest wind 3 to 5 mph.
Saturday
Sunny, with a high near 73. North northwest wind around 5 mph becoming light and variable in the afternoon.
Saturday Night
Increasing clouds, with a low around 54. East wind 6 to 11 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 71. East wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 53. East northeast wind 5 to 9 mph.
Monday
Partly sunny, with a high near 73. North northeast wind around 6 mph becoming south southeast in the afternoon.
Monday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 55. South southeast wind 6 to 8 mph. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 71. Southwest wind 9 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51. West northwest wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 70. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 30%.
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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:
12:36 am CDT Jun 20, 2026
Forecast Valid:
12am 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