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.

Thunderstorm and Breezy

57°F

14°C

Humidity 90%
Wind Speed NW 25 G 32 mph
Barometer 29.53 in (1001.1 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 May 7:56 pm CDT
Extended Forecast for

Yankton SD

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Cloudy, with a low around 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then showers likely after 4pm. Cloudy, with a high near 59. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers before 1am. Low around 39. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 59 °F

    Decreasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. North northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. Light south southeast wind increasing to 5 to 10 mph in the morning.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Cloudy, with a low around 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then showers likely after 4pm. Cloudy, with a high near 59. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers before 1am. Low around 39. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 34. North northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 66. Light south southeast wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Mostly cloudy, with a high near 70.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 45.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 74.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 49.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.9°N 97.4°W (Elev. 1250 ft)
Last Update:
7:01 pm CDT May 17, 2026
Forecast Valid:
8pm CDT May 17, 2026-6pm CDT May 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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