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 60%
Wind Speed Calm
Barometer 29.84 in (1009.1 mb)
Dewpoint 62°F (17°C)
Visibility NA
Heat Index79°F (26°C)
Last update 17 Jun 1:56 pm CDT
Extended Forecast for

6 Miles E Grenville SD

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. Calm wind. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. North northwest wind around 6 mph.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Northwest wind 6 to 10 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. West northwest wind 6 to 10 mph becoming southwest after midnight.

    Low: 59 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 85. South southeast wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Southeast wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 89. Southeast wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. Calm wind. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 59. North northwest wind around 6 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Northwest wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 59. West northwest wind 6 to 10 mph becoming southwest after midnight.
Juneteenth
Sunny, with a high near 83. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 85. South southeast wind 10 to 14 mph, with gusts as high as 25 mph.
Friday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Southeast wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 89. Southeast wind 10 to 15 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 86. Breezy.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
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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:
1:48 pm CDT Jun 17, 2025
Forecast Valid:
2pm CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
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