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 and Breezy

83°F

28°C

Humidity 41%
Wind Speed S 21 G 26 mph
Barometer 29.91 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 1 Oct 4:55 pm CDT
Extended Forecast for

Gann Valley SD

  • Tonight

    Tonight: Mostly clear, with a low around 56. South wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 25 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Light and variable wind becoming north northwest around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. East southeast wind around 9 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 90. Breezy, with a south southeast wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 90 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. South wind 14 to 17 mph, with gusts as high as 26 mph.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Breezy, with a south wind 14 to 22 mph, with gusts as high as 31 mph.

    High: 89 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. South southwest wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 1pm. Mostly sunny, with a high near 66. Breezy, with a west southwest wind 17 to 24 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 30%.

    High: 66 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. North wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. South wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 25 mph.
Thursday
Sunny, with a high near 85. Light and variable wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60. East southeast wind around 9 mph.
Friday
Sunny and hot, with a high near 90. Breezy, with a south southeast wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Mostly clear, with a low around 67. South wind 14 to 17 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 89. Breezy, with a south wind 14 to 22 mph, with gusts as high as 31 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. South southwest wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Sunday
A chance of showers before 1pm. Mostly sunny, with a high near 66. Breezy, with a west southwest wind 17 to 24 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 43. North wind 7 to 14 mph, with gusts as high as 22 mph.
Monday
Partly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 67. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gann Valley SD
 44.04°N 98.98°W (Elev. 1709 ft)
Last Update:
4:45 pm CDT Oct 1, 2025
Forecast Valid:
5pm CDT Oct 1, 2025-6pm CDT Oct 8, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation