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

79°F

26°C

Humidity 67%
Wind Speed SW 7 mph
Barometer 29.79 in (1008.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 31 Aug 1:56 am CDT
Extended Forecast for

5 Miles WSW Yankton SD

  • Overnight

    Overnight: Partly cloudy, with a low around 71. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 90. Northwest wind 5 to 10 mph.

    High: 90 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 68. South wind around 5 mph becoming calm.

    Low: 68 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 89. Light east northeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 65. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 89. Light and variable wind becoming east southeast 5 to 10 mph in the morning.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 71. West wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 90. Northwest wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 68. South wind around 5 mph becoming calm.
Tuesday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 89. Light east northeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 65. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 70%.
Wednesday
Sunny, with a high near 89. Light and variable wind becoming east southeast 5 to 10 mph in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 73.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Yankton SD
 42.86°N 97.48°W (Elev. 1201 ft)
Last Update:
1:33 am CDT Aug 31, 2026
Forecast Valid:
2am CDT Aug 31, 2026-6pm CDT Sep 6, 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