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.

70°F

21°C

Humidity 73%
Wind Speed W 6 mph
Barometer 30.06 in (1016.4 mb)
Dewpoint 61°F (16°C)
Visibility NA
Last update 21 Aug 8:56 pm CDT
Extended Forecast for

Webster SD

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 59. Light and variable wind becoming north around 6 mph in the evening. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. North northeast wind 6 to 8 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56. Light and variable wind becoming east southeast around 6 mph in the evening.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 77. Southeast wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Southeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 79. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 79 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind around 7 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. West wind 7 to 15 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Northwest wind 5 to 11 mph.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 59. Light and variable wind becoming north around 6 mph in the evening. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 76. North northeast wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 56. Light and variable wind becoming east southeast around 6 mph in the evening.
Sunday
Mostly sunny, with a high near 77. Southeast wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Southeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 79. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind around 7 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 82. West wind 7 to 15 mph.
Tuesday Night
Mostly clear, with a low around 61. Northwest wind 5 to 11 mph.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
A chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Webster SD
 45.33°N 97.52°W (Elev. 1831 ft)
Last Update:
9:06 pm CDT Aug 21, 2026
Forecast Valid:
9pm CDT Aug 21, 2026-6pm CDT Aug 28, 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