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

55°F

13°C

Humidity 70%
Wind Speed Calm
Barometer 30.41 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 4 Oct 10:15 am CDT
Extended Forecast for

Gann Valley SD

  • Today

    Today: Sunny, with a high near 71. Light and variable wind.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. Light east southeast wind becoming southeast 5 to 10 mph in the evening.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Breezy, with a south wind 14 to 22 mph, with gusts as high as 30 mph.

    High: 76 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. North northwest wind 6 to 9 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. North wind 3 to 5 mph.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. East wind around 6 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. East wind 6 to 11 mph.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 71. Light and variable wind.
Tonight
Mostly clear, with a low around 50. Light east southeast wind becoming southeast 5 to 10 mph in the evening.
Monday
Sunny, with a high near 76. Breezy, with a south wind 14 to 22 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 55. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph.
Tuesday
Sunny, with a high near 77. North northwest wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 52. North wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 73. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 51. East wind around 6 mph.
Thursday
Mostly sunny, with a high near 70. East wind 6 to 11 mph.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 78. Breezy.
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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:
10:16 am CDT Oct 4, 2026
Forecast Valid:
10am CDT Oct 4, 2026-6pm CDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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