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Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fog/Mist

72°F

22°C

Humidity 97%
Wind Speed NE 7 mph
Barometer 29.93 in (1013.8 mb)
Dewpoint 71°F (22°C)
Visibility 4.00 mi
Last update 25 Jul 2:56 am CDT
Extended Forecast for

Irene SD

Extreme Heat Warning July 25, 12:00pm until July 26, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Overnight

    Overnight: Partly cloudy, with a low around 68. South wind around 10 mph.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 97. Heat index values as high as 106. South wind 5 to 10 mph becoming north in the afternoon.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: A chance of rain and thunderstorms before 1am, then a chance of showers and thunderstorms, mainly between 1am and 4am. Increasing clouds, with a low around 75. South southeast wind around 10 mph becoming west northwest in the evening. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms before 7am. Cloudy through mid morning, then gradual clearing and hot, with a high near 98. Heat index values as high as 107. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 98 °F

    Slight Chance
    T-storms then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 74 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Sunny and hot, with a high near 96. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 68. South wind around 10 mph.
Saturday
Mostly sunny and hot, with a high near 97. Heat index values as high as 106. South wind 5 to 10 mph becoming north in the afternoon.
Saturday Night
A chance of rain and thunderstorms before 1am, then a chance of showers and thunderstorms, mainly between 1am and 4am. Increasing clouds, with a low around 75. South southeast wind around 10 mph becoming west northwest in the evening. Chance of precipitation is 30%.
Sunday
A 10 percent chance of showers and thunderstorms before 7am. Cloudy through mid morning, then gradual clearing and hot, with a high near 98. Heat index values as high as 107. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.
Monday
Sunny and hot, with a high near 96. North northeast wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Friday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Irene SD
 43.08°N 97.16°W (Elev. 1401 ft)
Last Update:
3:13 am CDT Jul 25, 2026
Forecast Valid:
3am CDT Jul 25, 2026-6pm CDT Jul 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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