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

77°F

25°C

Humidity 29%
Wind Speed NW 15 G 20 mph
Barometer 30.03 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Jun 6:55 pm CDT
Extended Forecast for

8 Miles SE Gann Valley SD

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Northwest wind 5 to 15 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 4pm and 5pm. Increasing clouds, with a high near 78. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 54. East southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 65. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 65 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Cloudy, with a low around 50. Northeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 72. North northeast wind around 5 mph becoming south southeast in the afternoon.

    High: 72 °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 52. Chance of precipitation is 60%.

    Low: 52 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Breezy.

    High: 74 °F

    Partly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. Northwest wind 5 to 15 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.
Saturday
A slight chance of showers between 4pm and 5pm. Increasing clouds, with a high near 78. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 54. East southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 65. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Sunday Night
Showers likely, mainly before 1am. Cloudy, with a low around 50. Northeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 72. North northeast wind around 5 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 52. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 74. Breezy.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SE Gann Valley SD
 43.96°N 98.86°W (Elev. 1677 ft)
Last Update:
4:43 pm CDT Jun 19, 2026
Forecast Valid:
7pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation