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

59°F

15°C

Humidity 46%
Wind Speed E 9 mph
Barometer 30.19 in (1023.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 20 May 7:56 pm CDT
Extended Forecast for

Yankton SD

  • Tonight

    Tonight: A chance of sprinkles before 2am. Cloudy, with a low around 41. East southeast wind 5 to 10 mph.

    Low: 41 °F

    Chance
    Sprinkles

  • Thursday

    Thursday: Partly sunny, with a high near 68. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 5am. Mostly cloudy, with a low around 45. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers, with thunderstorms also possible after 1pm. High near 60. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    High: 60 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 44. East southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%.

    Low: 44 °F

    Showers
    Likely

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 72. West northwest wind 5 to 10 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of sprinkles before 2am. Cloudy, with a low around 41. East southeast wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 68. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 45. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, with thunderstorms also possible after 1pm. High near 60. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 44. East southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 72. West northwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 54.
Memorial Day
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 88. Breezy.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.88°N 97.4°W (Elev. 1204 ft)
Last Update:
5:53 pm CDT May 20, 2026
Forecast Valid:
8pm CDT May 20, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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