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

82°F

28°C

Humidity 63%
Wind Speed S 18 mph
Barometer 29.44 in (996.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 21 Jun 5:56 am CDT
Extended Forecast for

4 Miles NE Santee NE

Extreme Heat Warning June 21, 06:35am until June 22, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 21, 06:35am until June 22, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Today

    High: 107 °F

    Sunny and
    Breezy then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 81. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 81 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Sunday

    Sunday: Sunny and hot, with a high near 102. Heat index values as high as 106. Breezy, with a south southwest wind around 20 mph, with gusts as high as 30 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 65. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 65 °F

    T-storms
    Likely

  • Monday

    Monday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, 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. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 90%.

    Low: 65 °F

    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 107. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 81. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 102. Heat index values as high as 106. Breezy, with a south southwest wind around 20 mph, with gusts as high as 30 mph.
Sunday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 65. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Monday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. East northeast wind 5 to 10 mph.
Tuesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Thursday
Partly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Santee NE
 42.87°N 97.78°W (Elev. 1207 ft)
Last Update:
6:30 am CDT Jun 21, 2025
Forecast Valid:
6am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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