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

64°F

18°C

Humidity 82%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 Sep 7:35 pm CDT
Extended Forecast for

11 Miles NNW Gann Valley SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Southeast wind 5 to 9 mph becoming calm after midnight.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 74. East wind 5 to 13 mph.

    High: 74 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms, mainly before 4am. Some of the storms could produce heavy rainfall. Low around 60. Breezy, with an east wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 60 °F

    Heavy Rain
    and Breezy

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 74. East southeast wind 13 to 17 mph becoming north northwest in the afternoon. Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 1am. Cloudy, with a low around 55. North wind 9 to 13 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Saturday

    Saturday: Cloudy, with a high near 66. North northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 66 °F

    Cloudy

  • Saturday Night

    Saturday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 54. Northeast wind 7 to 10 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly after 1pm. Cloudy, with a high near 64. East northeast wind 8 to 10 mph. Chance of precipitation is 40%.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 53. East northeast wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 53. Southeast wind 5 to 9 mph becoming calm after midnight.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 74. East wind 5 to 13 mph.
Thursday Night
Showers and thunderstorms, mainly before 4am. Some of the storms could produce heavy rainfall. Low around 60. Breezy, with an east wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Friday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 74. East southeast wind 13 to 17 mph becoming north northwest in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of showers before 1am. Cloudy, with a low around 55. North wind 9 to 13 mph. Chance of precipitation is 30%.
Saturday
Cloudy, with a high near 66. North northeast wind around 11 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 54. Northeast wind 7 to 10 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, mainly after 1pm. Cloudy, with a high near 64. East northeast wind 8 to 10 mph. Chance of precipitation is 40%.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 53. East northeast wind 6 to 8 mph. Chance of precipitation is 60%.
Monday
A slight chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 53. Chance of precipitation is 30%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 73. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Gann Valley SD
 44.19°N 99.05°W (Elev. 1722 ft)
Last Update:
7:21 pm CDT Sep 16, 2026
Forecast Valid:
7pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation