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

83°F

28°C

Humidity 74%
Wind Speed E 7 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 1 Sep 11:56 am CDT
Extended Forecast for

5 Miles WSW Yankton SD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 87. East southeast wind 5 to 10 mph.

    High: 87 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming north northeast in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 91. Light and variable wind becoming south southeast 5 to 10 mph in the afternoon.

    High: 91 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am. Increasing clouds, with a low around 70. East southeast wind around 5 mph.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 94. South wind 5 to 10 mph.

    High: 94 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. South wind 5 to 10 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Friday Night

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

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 87. East southeast wind 5 to 10 mph.
Tonight
Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming north northeast in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 91. Light and variable wind becoming south southeast 5 to 10 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Increasing clouds, with a low around 70. East southeast wind around 5 mph.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 94. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 72. South wind 5 to 10 mph.
Friday
Sunny, with a high near 94.
Friday Night
Partly cloudy, with a low around 73.
Saturday
Mostly sunny, with a high near 94.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 67.
Labor Day
A 30 percent chance of showers. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Yankton SD
 42.88°N 97.49°W (Elev. 1375 ft)
Last Update:
11:23 am CDT Sep 1, 2026
Forecast Valid:
12pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation