Heavy Rain Threatens the Mid-Atlantic on Sunday While Fire Weather Conditions Worsen in the Southwest

Heavy rain is bringing a flash flood risk to parts of the Mid-Atlantic on Sunday. This activity will diminish overnight. On Monday, the focus shifts into the Plains and Mississippi Valley where severe thunderstorms and heavy rains will be possible through Tuesday. Meanwhile, hot conditions and Critical Fire Weather looms over the Great Basin and Southwest U.S. through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Oacoma SD

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am.  Mostly cloudy, with a low around 65. East southeast wind 7 to 10 mph.  Chance of precipitation is 20%.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms before 8am.  Mostly sunny, with a high near 88. South wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms then
    Sunny

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly after 1am.  Increasing clouds, with a low around 63. North northeast wind 6 to 11 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 80. East northeast wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    High: 80 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 59. North northeast wind 5 to 10 mph.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 80. Northwest wind 6 to 9 mph.  Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Northwest wind 5 to 8 mph becoming southwest after midnight.

    Low: 59 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny and hot, with a high near 90. South southeast wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 90 °F

    Hot

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms.  Mostly clear, with a low around 66. South southeast wind around 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 65. East southeast wind 7 to 10 mph. Chance of precipitation is 20%.
Monday
A slight chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 88. South wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Monday Night
Showers and thunderstorms likely, mainly after 1am. Increasing clouds, with a low around 63. North northeast wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. East northeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North northeast wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 59. Northwest wind 5 to 8 mph becoming southwest after midnight.
Juneteenth
Sunny and hot, with a high near 90. South southeast wind 6 to 15 mph, with gusts as high as 24 mph.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 66. South southeast wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Friday
Sunny and hot, with a high near 96.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny and hot, with a high near 94.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Mostly sunny and hot, with a high near 90. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Oacoma SD
 43.8°N 99.39°W (Elev. 1355 ft)
6:47 pm CDT Jun 15, 2025
7pm CDT Jun 15, 2025-6pm CDT Jun 22, 2025
 
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Additional Resources

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