National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Overcast

72°F

22°C

Humidity 84%
Wind Speed E 9 mph
Barometer 29.97 in (1015.2 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 6 Sep 6:56 pm CDT
Extended Forecast for

Center NE

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 70. Southeast wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Labor Day

    Labor Day: A slight chance of showers between 9am and 10am. Cloudy, then gradually becoming mostly sunny, with a high near 94. Breezy, with a south southeast wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 94 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 4am, then a slight chance of showers between 4am and 5am. Increasing clouds, with a low around 70. Breezy, with a south southeast wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms and
    Breezy then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. South wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Light south southwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64. South wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 64 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 70. Southeast wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Labor Day
A slight chance of showers between 9am and 10am. Cloudy, then gradually becoming mostly sunny, with a high near 94. Breezy, with a south southeast wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Monday Night
Showers and thunderstorms likely before 4am, then a slight chance of showers between 4am and 5am. Increasing clouds, with a low around 70. Breezy, with a south southeast wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. South wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Partly cloudy, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 80. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 85. Light south southwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64. South wind 9 to 14 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 89. South wind around 14 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Mostly clear, with a low around 62. North northeast wind 7 to 10 mph, with gusts as high as 16 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 82. Northeast wind 8 to 15 mph, with gusts as high as 22 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 57. Northeast wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday
A slight chance of showers. Partly sunny, with a high near 76. North northwest wind 10 to 15 mph, with gusts as high as 22 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Center NE
 42.61°N 97.89°W (Elev. 1401 ft)
Last Update:
7:05 pm CDT Sep 6, 2026
Forecast Valid:
7pm CDT Sep 6, 2026-6pm CDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation