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

67°F

19°C

Humidity 79%
Wind Speed Calm
Barometer 30.14 in (1021.2 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 16 Aug 10:56 pm CDT
Extended Forecast for

Yankton SD

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Northwest wind around 5 mph becoming calm.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers before 1pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 84. Light south southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 63. South southwest wind 5 to 10 mph becoming light west after midnight.

    Low: 63 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 59. East northeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Calm wind becoming east southeast around 5 mph in the morning. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. Northwest wind around 5 mph becoming calm.
Monday
A chance of showers before 1pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 84. Light south southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 63. South southwest wind 5 to 10 mph becoming light west after midnight.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 59. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Calm wind becoming east southeast around 5 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.88°N 97.4°W (Elev. 1204 ft)
Last Update:
10:52 pm CDT Aug 16, 2026
Forecast Valid:
11pm CDT Aug 16, 2026-6pm CDT Aug 23, 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