Tropical Storm Edouard Impacting the Northwestern Gulf Coast; Hazardous Heat expands in the East

Tropical Storm Edouard will impact the northwestern Gulf Coast through Wednesday with gusty winds, storm surge, and heavy rainfall. Flash and river flooding will be possible, especially in southeastern Texas. Hazardous heat will expand across the central and eastern U.S. by mid-week, and daily chances for severe thunderstorms are expected from the eastern Great Lakes to the Mid-Atlantic this week. Read More >

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

90°F

32°C

Humidity 50%
Wind Speed E 8 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 1 Sep 3:56 pm CDT
Extended Forecast for

6 Miles WSW Yankton SD

Severe T-storm Watch until September 1, 11:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until September 1, 11:00pm

    NOW until 11:00pm Tue

    Severe T-storm Watch

  • This Afternoon

    High: 89 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am.  Mostly cloudy, with a low around 66. East southeast wind 5 to 7 mph becoming light and variable  after midnight.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 89. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 89 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 71. East southeast wind 6 to 8 mph.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 93. South wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. South wind 6 to 8 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. South wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 71. South southeast wind 7 to 9 mph.

    Low: 71 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 89. Southeast wind around 9 mph, with gusts as high as 16 mph.
Tonight
Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 66. East southeast wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 89. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. East southeast wind 6 to 8 mph.
Thursday
Sunny, with a high near 93. South wind 8 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 72. South wind 6 to 8 mph.
Friday
Sunny, with a high near 94. South wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southeast wind 7 to 9 mph.
Saturday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94. South wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70. South southeast wind 5 to 8 mph.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 90. North northeast wind 5 to 10 mph becoming southeast in the morning. Winds could gust as high as 18 mph.
Sunday Night
A chance of showers. Partly cloudy, with a low around 67. East southeast wind 6 to 9 mph.
Labor Day
A chance of showers and thunderstorms. Partly sunny, with a high near 86. South southeast wind 7 to 13 mph, with gusts as high as 21 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southeast wind 11 to 13 mph, with gusts as high as 21 mph.
Tuesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 11 to 15 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Yankton SD
 42.84°N 97.48°W (Elev. 1250 ft)
4:35 pm CDT Sep 1, 2026
4pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
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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