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

72°F

22°C

Humidity 97%
Wind Speed NE 6 mph
Barometer 29.91 in (1013.0 mb)
Dewpoint 71°F (22°C)
Visibility 9.00 mi
Last update 10 Aug 1:56 am CDT
Extended Forecast for

Yankton SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 69. Northeast wind around 5 mph.

    Low: 69 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 89. Northeast wind around 10 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 89 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly between 11pm and 1am. Mostly cloudy, with a low around 68. East southeast wind 5 to 10 mph becoming northeast after midnight.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 89. East northeast wind 5 to 10 mph.

    High: 89 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 67. East northeast wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 87. East wind 5 to 10 mph.

    High: 87 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms before 1pm. Cloudy, with a high near 76.

    High: 76 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 69. Northeast wind around 5 mph.
Monday
Partly sunny, with a high near 89. Northeast wind around 10 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly between 11pm and 1am. Mostly cloudy, with a low around 68. East southeast wind 5 to 10 mph becoming northeast after midnight.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 89. East northeast wind 5 to 10 mph.
Tuesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 67. East northeast wind 5 to 10 mph. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 87. East wind 5 to 10 mph.
Wednesday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. Cloudy, with a high near 76.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59.
Friday
A 40 percent chance of showers. Cloudy, with a high near 73.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 61.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 75.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Sunday
Mostly cloudy, with a high near 75.
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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:
1:33 am CDT Aug 10, 2026
Forecast Valid:
2am CDT Aug 10, 2026-6pm CDT Aug 16, 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