National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

41°F

5°C

Humidity 65%
Wind Speed S 12 mph
Barometer 30.29 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 17 Oct 7:55 am CDT
Extended Forecast for

8 Miles N Gann Valley SD

  • Today

    Today: Sunny, with a high near 67. Breezy, with a south wind 18 to 21 mph, with gusts as high as 29 mph.

    High: 67 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 40. South wind 11 to 17 mph, with gusts as high as 25 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. South wind 6 to 9 mph becoming north northeast in the afternoon.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Northeast wind 7 to 9 mph.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. East southeast wind 9 to 11 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Southeast wind around 9 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. South southeast wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. South southeast wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. South wind 8 to 10 mph.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 67. Breezy, with a south wind 18 to 21 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 40. South wind 11 to 17 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 66. South wind 6 to 9 mph becoming north northeast in the afternoon.
Sunday Night
Mostly clear, with a low around 37. Northeast wind 7 to 9 mph.
Monday
Sunny, with a high near 62. East southeast wind 9 to 11 mph.
Monday Night
Mostly clear, with a low around 42. Southeast wind around 9 mph.
Tuesday
Sunny, with a high near 67. South southeast wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 48. South southeast wind 9 to 14 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 73. South wind 8 to 10 mph.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
A chance of showers. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles N Gann Valley SD
 44.15°N 98.96°W (Elev. 1903 ft)
Last Update:
7:21 am CDT Oct 17, 2026
Forecast Valid:
8am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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