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.

64°F

18°C

Humidity 73%
Wind Speed SE 5 mph
Barometer 30.00 in (1014.9 mb)
Dewpoint 55°F (13°C)
Visibility NA
Last update 25 Jun 9:56 pm CDT
Extended Forecast for

6 Miles ESE Grenville SD

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Southeast wind 3 to 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers between noon and 3pm. Partly sunny, with a high near 77. Southeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. East southeast wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 82. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.

    High: 82 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Breezy, with a southeast wind 17 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    Showers and
    Breezy then
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm. Partly sunny and hot, with a high near 92. Breezy, with a southeast wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    High: 92 °F

    Breezy.
    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South southeast wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 93. Southwest wind 11 to 18 mph, with gusts as high as 31 mph.

    High: 93 °F

    Hot

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 66. West southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Southeast wind 3 to 7 mph.
Friday
A slight chance of showers between noon and 3pm. Partly sunny, with a high near 77. Southeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 62. East southeast wind 13 to 15 mph, with gusts as high as 26 mph.
Saturday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 82. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Breezy, with a southeast wind 17 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms before 1pm. Partly sunny and hot, with a high near 92. Breezy, with a southeast wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 72. South southeast wind 8 to 13 mph, with gusts as high as 21 mph.
Monday
Sunny and hot, with a high near 93. Southwest wind 11 to 18 mph, with gusts as high as 31 mph.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 66. West southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 67. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 40%.
Thursday
Mostly sunny and hot, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Grenville SD
 45.44°N 97.28°W (Elev. 1844 ft)
Last Update:
9:36 pm CDT Jun 25, 2026
Forecast Valid:
10pm CDT Jun 25, 2026-6pm CDT Jul 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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