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.

Overcast

79°F

26°C

Humidity 72%
Wind Speed SE 16 G 25 mph
Barometer 29.75 in (1007.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 27 Jun 4:56 pm CDT
Extended Forecast for

Yankton SD

Heat Advisory June 28, 01:00pm until June 29, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Breezy, with a southeast wind around 20 mph, with gusts as high as 30 mph.

    Low: 72 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 9am. Cloudy through mid morning, then gradual clearing and hot, with a high near 100. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 100 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 100. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph.

    High: 100 °F

    Hot and
    Breezy

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of thunderstorms before 7am. Mostly sunny and hot, with a high near 98. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.

    High: 98 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 69. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers after 1pm. Partly sunny and hot, with a high near 97.

    High: 97 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Breezy, with a southeast wind around 20 mph, with gusts as high as 30 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 9am. Cloudy through mid morning, then gradual clearing and hot, with a high near 100. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny and hot, with a high near 100. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
A slight chance of thunderstorms before 7am. Mostly sunny and hot, with a high near 98. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Tuesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 69. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers after 1pm. Partly sunny and hot, with a high near 97.
Wednesday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71.
Thursday
Mostly sunny and hot, with a high near 99.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Friday
Sunny and hot, with a high near 101.
Friday Night
Mostly clear, with a low around 75.
Independence Day
Mostly sunny and hot, with a high near 101.
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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:
4:48 pm CDT Jun 27, 2026
Forecast Valid:
5pm CDT Jun 27, 2026-6pm CDT Jul 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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