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

78°F

26°C

Humidity 50%
Wind Speed S 20 mph
Barometer 30.11 in (1019.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 30 Sep 11:56 am CDT
Extended Forecast for

Yankton SD

  • This Afternoon

    This Afternoon: A slight chance of sprinkles after 3pm. Cloudy, with a high near 80. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 80 °F

    Slight Chance
    Sprinkles and
    Breezy

  • Tonight

    Tonight: A chance of sprinkles before 4am, then a slight chance of showers between 4am and 5am. Cloudy during the early evening, then gradual clearing, with a low around 62. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers or sprinkles before noon, then a slight chance of showers between noon and 1pm. Mostly sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 66. South wind around 10 mph.

    Low: 66 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of sprinkles after 3pm. Cloudy, with a high near 80. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
A chance of sprinkles before 4am, then a slight chance of showers between 4am and 5am. Cloudy during the early evening, then gradual clearing, with a low around 62. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers or sprinkles before noon, then a slight chance of showers between noon and 1pm. Mostly sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 66. South wind around 10 mph.
Friday
Sunny, with a high near 91.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 69.
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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:
12:18 pm CDT Sep 30, 2025
Forecast Valid:
12pm CDT Sep 30, 2025-6pm CDT Oct 6, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation