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

71°F

22°C

Humidity 96%
Wind Speed Calm
Barometer 30.01 in (1016.5 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 4 Jul 12:56 am CDT
Extended Forecast for

Yankton SD

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 66. South southwest wind around 5 mph becoming east northeast.

    Low: 66 °F

    Patchy Fog

  • Independence Day

    Independence Day: A 10 percent chance of showers after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.

    High: 88 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 65. North wind 5 to 10 mph becoming light and variable in the evening.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon.

    High: 91 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. East wind 5 to 10 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. South southeast wind 5 to 10 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 66. South southwest wind around 5 mph becoming east northeast.
Independence Day
A 10 percent chance of showers after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 65. North wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 67. East wind 5 to 10 mph.
Monday
Sunny, with a high near 94. South southeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny and hot, with a high near 95.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 93. Chance of precipitation is 30%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 92.
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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:
1:33 am CDT Jul 4, 2026
Forecast Valid:
1am CDT Jul 4, 2026-6pm CDT Jul 10, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation