National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

68°F

20°C

Humidity 81%
Wind Speed S 9 mph
Barometer 30.02 in (1017.3 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 15 Sep 9:56 am CDT
Extended Forecast for

Yankton SD

  • Today

    Today: Sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Southeast wind 5 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. South wind 5 to 10 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 70%.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 61. East wind around 5 mph. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 73. Chance of precipitation is 70%.

    High: 73 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 85. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 62. Southeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 89. South wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. South wind around 5 mph.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 70%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 61. East wind around 5 mph. Chance of precipitation is 80%.
Thursday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 73. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 71.
Friday Night
Mostly cloudy, with a low around 58.
Saturday
Partly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.9°N 97.4°W (Elev. 1250 ft)
Last Update:
10:11 am CDT Sep 15, 2025
Forecast Valid:
10am CDT Sep 15, 2025-6pm CDT Sep 21, 2025
 
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