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 and Breezy

93°F

34°C

Humidity 42%
Wind Speed SW 21 G 24 mph
Barometer 29.86 in (1010.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 3 Jul 2:56 pm CDT
Extended Forecast for

Yankton SD

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 96. Heat index values as high as 100. South wind around 15 mph, with gusts as high as 25 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 92. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 92 °F

    Breezy. Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. West southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64. North northeast wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 96. Heat index values as high as 100. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 74. South wind 10 to 15 mph, with gusts as high as 20 mph.
Independence Day
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 92. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. West southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 64. North northeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Mostly cloudy, with a low around 63.
Monday
Partly sunny, with a high near 87.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Wednesday
Partly sunny, with a high near 91.
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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:
2:30 pm CDT Jul 3, 2025
Forecast Valid:
3pm CDT Jul 3, 2025-6pm CDT Jul 9, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation