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.

55°F

13°C

Humidity 87%
Wind Speed NW 5 mph
Barometer 30.09 in (1017.8 mb)
Dewpoint 51°F (11°C)
Visibility NA
Wind Chill54°F (12°C)
Last update 27 Aug 12:56 am CDT
Extended Forecast for

Ortley SD

  • Overnight

    Overnight: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. North wind 3 to 7 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Light and variable wind becoming southeast around 6 mph in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms between 1pm and 4pm. Increasing clouds, with a high near 81. South southeast wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm between 7pm and 1am, then showers likely after 1am. Mostly cloudy, with a low around 63. South wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 83. South southeast wind around 9 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East wind around 7 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 82. East northeast wind 7 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 63. North northwest wind 7 to 9 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 57. Calm wind.
Thursday
Sunny, with a high near 77. North wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 54. Light and variable wind becoming southeast around 6 mph in the evening.
Friday
A slight chance of showers and thunderstorms between 1pm and 4pm. Increasing clouds, with a high near 81. South southeast wind 7 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
Showers likely and possibly a thunderstorm between 7pm and 1am, then showers likely after 1am. Mostly cloudy, with a low around 63. South wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 83. South southeast wind around 9 mph.
Saturday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East wind around 7 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 82. East northeast wind 7 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 63. North northwest wind 7 to 9 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 81.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ortley SD
 45.33°N 97.21°W (Elev. 1847 ft)
Last Update:
12:16 am CDT Aug 27, 2026
Forecast Valid:
1am CDT Aug 27, 2026-6pm CDT Sep 2, 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