Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Mostly Cloudy

78°F

26°C

Humidity 90%
Wind Speed W 15 mph
Barometer 30.04 in (1017.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 15 Aug 10:56 am CDT
Extended Forecast for

Santee NE

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly before 5pm.  Mostly cloudy, with a high near 81. West wind 5 to 7 mph.  New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 63. West northwest wind around 6 mph.

    Low: 63 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 78. North wind 5 to 8 mph.

    High: 78 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 1am.  Increasing clouds, with a low around 60. North wind around 6 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Mostly Clear
    then Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 82. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 65. South wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm.  Mostly cloudy, with a high near 81. South wind 6 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 17 mph.  Chance of precipitation is 60%.

    High: 81 °F

    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 60. North wind 5 to 9 mph.

    Low: 60 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 74. North northwest wind 5 to 8 mph.

    High: 74 °F

    Partly Sunny

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 5pm. Mostly cloudy, with a high near 81. West wind 5 to 7 mph. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 63. West northwest wind around 6 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 78. North wind 5 to 8 mph.
Sunday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 60. North wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 82. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. South wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 81. South wind 6 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 60. North wind 5 to 9 mph.
Wednesday
Partly sunny, with a high near 74. North northwest wind 5 to 8 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. North northeast wind 5 to 7 mph becoming south southeast after midnight.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 75. South wind 5 to 9 mph, with gusts as high as 16 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Southeast wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 79. South wind 6 to 9 mph, with gusts as high as 17 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Santee NE
 42.83°N 97.84°W (Elev. 1401 ft)
10:35 am CDT Aug 15, 2026
11am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
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Additional Resources

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