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 >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 30.21 in
Dewpoint N/A
Visibility 7.00 mi
Last update 16 Aug 5:35 am CDT
Extended Forecast for

Oacoma SD

  • Today

    Today: Sunny, with a high near 79. North northwest wind 3 to 5 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 4am.  Partly cloudy, with a low around 61. East northeast wind around 6 mph becoming light and variable.  Chance of precipitation is 30%.

    Low: 61 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon.  Sunny, with a high near 84. South southeast wind 7 to 9 mph becoming west northwest in the afternoon.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    T-storms then
    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 62. North northwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 62 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 77. Light north northeast wind becoming east northeast 5 to 9 mph in the morning.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 58. East northeast wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Partly sunny, with a high near 79. Calm wind becoming south southeast 5 to 7 mph in the morning.  Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 59. East southeast wind around 7 mph becoming south southwest after midnight.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 84. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 79. North northwest wind 3 to 5 mph.
Tonight
A chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 61. East northeast wind around 6 mph becoming light and variable. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Sunny, with a high near 84. South southeast wind 7 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. North northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Light north northeast wind becoming east northeast 5 to 9 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 58. East northeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Calm wind becoming south southeast 5 to 7 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. East southeast wind around 7 mph becoming south southwest after midnight. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 84. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 62.
Friday
Mostly sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Oacoma SD
 43.8°N 99.39°W (Elev. 1355 ft)
5:36 am CDT Aug 16, 2026
5am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
 
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Additional Resources

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Hourly Weather Forecast

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