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

77°F

25°C

Humidity 56%
Wind Speed NW 12 mph
Barometer 30.12 in (1020.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 26 Aug 10:56 am CDT
Extended Forecast for

Yankton SD

  • Today

    Today: Sunny, with a high near 85. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. North northwest wind 5 to 10 mph becoming light northwest in the evening.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. South southeast wind around 5 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 88. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 88 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South southeast wind around 15 mph, with gusts as high as 30 mph.

    Low: 69 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 85. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 57. North northwest wind 5 to 10 mph becoming light northwest in the evening.
Thursday
Sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. South southeast wind around 5 mph.
Friday
Mostly sunny, with a high near 88. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South southeast wind around 15 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Partly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Partly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Partly sunny, with a high near 87.
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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:
9:33 am CDT Aug 26, 2026
Forecast Valid:
11am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation