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

10 Miles ESE Gann Valley SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Southeast wind 5 to 10 mph becoming east northeast after midnight.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 10 percent chance of showers after 5pm. Partly sunny, with a high near 73. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms, mainly between 4am and 5am. Some of the storms could produce heavy rainfall. Low around 61. Breezy, with an east wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 61 °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 75. East southeast wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers. Cloudy, with a low around 56. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Cloudy, with a high near 65. North wind around 10 mph.

    High: 65 °F

    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Cloudy, with a high near 64.

    High: 64 °F

    Cloudy then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. Southeast wind 5 to 10 mph becoming east northeast after midnight.
Thursday
A 10 percent chance of showers after 5pm. Partly sunny, with a high near 73. East wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Showers and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms, mainly between 4am and 5am. Some of the storms could produce heavy rainfall. Low around 61. Breezy, with an east wind 10 to 20 mph, with gusts as high as 25 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 75. East southeast wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Friday Night
A 20 percent chance of showers. Cloudy, with a low around 56. North wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Cloudy, with a high near 65. North wind around 10 mph.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
A 40 percent chance of showers after 1pm. Cloudy, with a high near 64.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53.
Monday
Mostly cloudy, with a high near 65.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Gann Valley SD
 44°N 98.8°W (Elev. 1801 ft)
Last Update:
5:38 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