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

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

91°F

33°C

Humidity 24%
Wind Speed SE 14 mph
Barometer 29.84 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 25 May 3:55 pm CDT
Extended Forecast for

Oacoma SD

  • Memorial Day

    Memorial Day: Sunny and hot, with a high near 96. East southeast wind around 15 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 61. South southeast wind 6 to 11 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Breezy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 97 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. South southeast wind 8 to 18 mph, with gusts as high as 28 mph.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 92. Breezy, with a south southeast wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 92 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. Southeast wind 7 to 17 mph, with gusts as high as 25 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny and hot, with a high near 91. Southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 91 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. Southeast wind 10 to 17 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms and
    Breezy

Detailed Forecast

Memorial Day
Sunny and hot, with a high near 96. East southeast wind around 15 mph.
Tonight
Partly cloudy, with a low around 61. South southeast wind 6 to 11 mph.
Tuesday
Sunny and hot, with a high near 97. Breezy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Partly cloudy, with a low around 60. South southeast wind 8 to 18 mph, with gusts as high as 28 mph.
Wednesday
Sunny and hot, with a high near 92. Breezy, with a south southeast wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 59. Southeast wind 7 to 17 mph, with gusts as high as 25 mph.
Thursday
Partly sunny and hot, with a high near 91. Southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Thursday Night
Mostly cloudy, with a low around 60. Southeast wind 10 to 17 mph, with gusts as high as 25 mph.
Friday
A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Breezy. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oacoma SD
 43.8°N 99.39°W (Elev. 1355 ft)
Last Update:
3:36 pm CDT May 25, 2026
Forecast Valid:
4pm CDT May 25, 2026-6pm CDT May 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation