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.

77°F

25°C

Humidity 74%
Wind Speed N 9 mph
Barometer 29.92 in (1011.6 mb)
Dewpoint 68°F (20°C)
Visibility NA
Heat Index79°F (26°C)
Last update 9 Aug 1:56 pm CDT
Extended Forecast for

Gwinner ND

  • This Afternoon

    This Afternoon: Mostly sunny, with a steady temperature around 78. North northeast wind 9 to 11 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. North northeast wind 5 to 7 mph becoming east southeast after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. East southeast wind 5 to 9 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 59. East northeast wind 6 to 11 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 82. Northeast wind 6 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers after 1am. Partly cloudy, with a low around 58. East northeast wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. North northeast wind 6 to 11 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55. Northeast wind 7 to 11 mph.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 74. East wind 7 to 10 mph.

    High: 74 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a steady temperature around 78. North northeast wind 9 to 11 mph.
Tonight
Mostly cloudy, with a low around 57. North northeast wind 5 to 7 mph becoming east southeast after midnight.
Monday
Mostly sunny, with a high near 82. East southeast wind 5 to 9 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 59. East northeast wind 6 to 11 mph. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 82. Northeast wind 6 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers after 1am. Partly cloudy, with a low around 58. East northeast wind 6 to 8 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 80. North northeast wind 6 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 55. Northeast wind 7 to 11 mph.
Thursday
Partly sunny, with a high near 74. East wind 7 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 55. East northeast wind 6 to 9 mph.
Friday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Southeast wind 7 to 11 mph.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57. East southeast wind 8 to 11 mph.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 73. East southeast wind 8 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gwinner ND
 46.22°N 97.63°W
Last Update:
2:36 pm CDT Aug 9, 2026
Forecast Valid:
2pm CDT Aug 9, 2026-6pm CDT Aug 15, 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