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

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

60°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 26 Jun 3:15 am CDT
Extended Forecast for

Oacoma SD

  • Overnight

    Overnight: Cloudy, with a steady temperature around 61. Calm wind.

    Low: 61 °F

    Cloudy

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 80. 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: 80 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. South southeast wind 16 to 18 mph, with gusts as high as 28 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 82. Breezy, with a south southeast wind 21 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 40%.

    High: 82 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. Breezy, with a southeast wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Slight Chance
    T-storms and
    Breezy then
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 95. East southeast wind 8 to 10 mph becoming south southwest in the afternoon.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. Southeast wind 6 to 10 mph.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 91. South southeast wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 28 mph.

    High: 91 °F

    Hot

  • Monday Night

    Monday Night: A chance of showers and thunderstorms after 1am. Mostly clear, with a low around 63. South southwest wind 6 to 10 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 61. Calm wind.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 80. 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.
Friday Night
Partly cloudy, with a low around 63. South southeast wind 16 to 18 mph, with gusts as high as 28 mph.
Saturday
A chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 82. Breezy, with a south southeast wind 21 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. Breezy, with a southeast wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny and hot, with a high near 95. East southeast wind 8 to 10 mph becoming south southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 69. Southeast wind 6 to 10 mph.
Monday
Sunny and hot, with a high near 91. South southeast wind 11 to 17 mph becoming west in the afternoon. Winds could gust as high as 28 mph.
Monday Night
A chance of showers and thunderstorms after 1am. Mostly clear, with a low around 63. South southwest wind 6 to 10 mph. Chance of precipitation is 30%.
Tuesday
Sunny and hot, with a high near 91.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 64. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
Mostly sunny and hot, with a high near 95. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Oacoma SD
 43.8°N 99.36°W (Elev. 1355 ft)
Last Update:
2:36 am CDT Jun 26, 2026
Forecast Valid:
3am CDT Jun 26, 2026-6pm CDT Jul 2, 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