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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

33°F

1°C

Humidity 95%
Wind Speed E 5 mph
Barometer 30.01 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 13 Nov 3:55 am CST
Extended Forecast for

12 Miles WSW Gann Valley SD

  • Today

    Today: Sunny, with a high near 64. Light and variable wind becoming southeast 5 to 7 mph in the morning.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Southeast wind around 7 mph becoming south southwest after midnight.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74. West southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. West southwest wind 8 to 11 mph becoming north northwest after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 55. North northwest wind 9 to 15 mph.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. North northwest wind 5 to 7 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 52. North northwest wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33. East wind 10 to 13 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of rain. Mostly cloudy, with a high near 47. East wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 47 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 64. Light and variable wind becoming southeast 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 38. Southeast wind around 7 mph becoming south southwest after midnight.
Friday
Sunny, with a high near 74. West southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 42. West southwest wind 8 to 11 mph becoming north northwest after midnight.
Saturday
Mostly sunny, with a high near 55. North northwest wind 9 to 15 mph.
Saturday Night
Mostly clear, with a low around 30. North northwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 52. North northwest wind 5 to 10 mph becoming east southeast in the afternoon.
Sunday Night
Mostly cloudy, with a low around 33. East wind 10 to 13 mph.
Monday
A chance of rain. Mostly cloudy, with a high near 47. East wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Monday Night
A chance of rain, mainly before midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles WSW Gann Valley SD
 43.95°N 99.19°W (Elev. 1506 ft)
Last Update:
3:36 am CST Nov 13, 2025
Forecast Valid:
4am CST Nov 13, 2025-6pm CST Nov 19, 2025
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation