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Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

96°F

36°C

Humidity 64%
Wind Speed SE 13 mph
Barometer 29.76 in (1007.3 mb)
Dewpoint 82°F (28°C)
Visibility 10.00 mi
Heat Index120°F (49°C)
Last update 26 Jul 5:56 pm CDT
Extended Forecast for

3 Miles WSW Mayfield SD

Extreme Heat Warning July 26, 06:36pm until July 26, 09:00pm
Click here for hazard details and duration
...
  •  
    Extreme Heat Warning July 26, 06:36pm until July 26, 09:00pm

    NOW until 9:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Patchy smoke between 9am and 2pm. Mostly sunny and hot, with a high near 97. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 97 °F

    Patchy Smoke

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 72. Northeast wind 5 to 10 mph.

    Low: 72 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 92. East wind around 5 mph.

    High: 92 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Southeast wind 5 to 10 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly clear, with a low around 76. South wind 5 to 15 mph becoming north after midnight.
Monday
Patchy smoke between 9am and 2pm. Mostly sunny and hot, with a high near 97. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 72. Northeast wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 92. East wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 70. Southeast wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Mayfield SD
 43.05°N 97.37°W (Elev. 1247 ft)
Last Update:
3:58 pm CDT Jul 26, 2026
Forecast Valid:
6pm CDT Jul 26, 2026-6pm CDT Aug 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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