Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair and Breezy

84°F

29°C

Humidity 59%
Wind Speed S 22 G 35 mph
Barometer 29.44 in (996.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 21 Jun 7:56 am CDT
Extended Forecast for

Gayville SD

Extreme Heat Warning June 21, 08:37am until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 21, 08:37am until June 22, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Today

    High: 105 °F

    Hot and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 79. South wind around 15 mph, with gusts as high as 30 mph.

    Low: 79 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 102. Heat index values as high as 108. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 102 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am.  Increasing clouds, with a low around 67. Breezy, with a south southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 70%.

    Low: 67 °F

    T-storms
    Likely and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 81. North wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%.

    High: 81 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am.  Increasing clouds, with a low around 62. East northeast wind 5 to 10 mph.

    Low: 62 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 1pm.  Cloudy, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am.  Low around 65. Chance of precipitation is 90%.

    Low: 65 °F

    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 105. Heat index values as high as 110. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 79. South wind around 15 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 102. Heat index values as high as 108. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.
Sunday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 67. Breezy, with a south southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 62. East northeast wind 5 to 10 mph.
Tuesday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 78. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 65. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 63. Chance of precipitation is 70%.
Thursday
Mostly cloudy, with a high near 81.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Gayville SD
 42.9°N 97.19°W (Elev. 1171 ft)
6:30 am CDT Jun 21, 2025
8am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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Additional Resources

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