Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

83°F

28°C

Humidity 74%
Wind Speed E 7 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 1 Sep 11:56 am CDT
Extended Forecast for

3 Miles NNE Wynot NE

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 89. East southeast wind 7 to 9 mph, with gusts as high as 16 mph.

    High: 89 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am.  Mostly cloudy, with a low around 66. Southeast wind 5 to 8 mph becoming light and variable  after midnight.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

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

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 69. Southeast wind 6 to 8 mph.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: A slight chance of thunderstorms before 7am.  Sunny, with a high near 92. South wind 8 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 10%.

    High: 92 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71. South wind 7 to 9 mph, with gusts as high as 16 mph.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. South wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72. South southeast wind 7 to 10 mph, with gusts as high as 17 mph.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 93. South wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 89. East southeast wind 7 to 9 mph, with gusts as high as 16 mph.
Tonight
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 66. Southeast wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 89. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Southeast wind 6 to 8 mph.
Thursday
A slight chance of thunderstorms before 7am. Sunny, with a high near 92. South wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 71. South wind 7 to 9 mph, with gusts as high as 16 mph.
Friday
Sunny, with a high near 93. South wind 7 to 13 mph, with gusts as high as 21 mph.
Friday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South southeast wind 7 to 10 mph, with gusts as high as 17 mph.
Saturday
Mostly sunny, with a high near 93. South wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southeast wind around 8 mph.
Sunday
Mostly sunny, with a high near 90. East southeast wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. East southeast wind around 9 mph, with gusts as high as 16 mph.
Labor Day
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. South southeast wind 8 to 14 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Wynot NE
 42.77°N 97.16°W (Elev. 1152 ft)
11:21 am CDT Sep 1, 2026
12pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database