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.

Fair

63°F

17°C

Humidity 50%
Wind Speed NE 5 mph
Barometer 30.09 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 19 Jun 11:15 pm CDT
Extended Forecast for

Lower Brule SD

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Light and variable wind becoming east southeast around 6 mph after midnight.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 3pm. Sunny, then becoming cloudy during the afternoon, with a high near 77. East southeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 77 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 54. East wind 14 to 17 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 54 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 64. East wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 64 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Cloudy, with a low around 50. East northeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 71. East northeast wind 5 to 7 mph becoming south southeast in the afternoon.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. East southeast wind around 7 mph becoming west northwest after midnight. Chance of precipitation is 70%.

    Low: 53 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers before 1pm. Mostly sunny, with a high near 72. Breezy, with a west northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. Northwest wind 7 to 16 mph.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Light and variable wind becoming east southeast around 6 mph after midnight.
Saturday
A chance of showers after 3pm. Sunny, then becoming cloudy during the afternoon, with a high near 77. East southeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday Night
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 54. East wind 14 to 17 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 64. East wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers likely, mainly before 1am. Cloudy, with a low around 50. East northeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Partly sunny, with a high near 71. East northeast wind 5 to 7 mph becoming south southeast in the afternoon.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. East southeast wind around 7 mph becoming west northwest after midnight. Chance of precipitation is 70%.
Tuesday
A slight chance of showers before 1pm. Mostly sunny, with a high near 72. Breezy, with a west northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 50. Northwest wind 7 to 16 mph.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 54. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Lower Brule SD
 44.07°N 99.58°W (Elev. 1444 ft)
Last Update:
10:36 pm CDT Jun 19, 2026
Forecast Valid:
11pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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