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.

A Few Clouds

66°F

19°C

Humidity 84%
Wind Speed Calm
Barometer 30.09 in (1019.2 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Aug 12:56 am CDT
Extended Forecast for

Yankton SD

  • Overnight

    Overnight: A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 62. East southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. 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. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 71. South southeast wind around 15 mph, with gusts as high as 30 mph.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Slight Chance
    T-storms then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. South wind 5 to 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 94. South southwest wind 5 to 10 mph.

    High: 94 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 90.

    High: 90 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A slight chance of showers between 3am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 62. East southeast wind around 5 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. 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. Chance of precipitation is 20%.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 71. South southeast wind around 15 mph, with gusts as high as 30 mph.
Saturday
A 10 percent chance of showers and thunderstorms before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 73. South wind 5 to 10 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 94. South southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Partly sunny, with a high near 90.
Monday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 67.
Tuesday
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
Mostly sunny, with a high near 91.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 90.
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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:
12:43 am CDT Aug 28, 2026
Forecast Valid:
1am CDT Aug 28, 2026-6pm CDT Sep 3, 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