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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

26°F

-3°C

Humidity 84%
Wind Speed SW 6 mph
Barometer 30.18 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 9 Jan 11:15 am CST
Extended Forecast for

Gann Valley SD

  • Today

    Today: A chance of flurries before noon, then a slight chance of snow between noon and 2pm. Partly sunny, with a high near 38. West northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A chance of flurries after 5am. Increasing clouds, with a low around 18. West northwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Chance
    Flurries

  • Saturday

    Saturday: A slight chance of snow before 7am, then a chance of flurries between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 26. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 26 °F

    Slight Chance
    Snow then
    Sunny and
    Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11. North northwest wind 5 to 10 mph becoming light and variable.

    Low: 11 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 42. South wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. West wind 8 to 10 mph.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. West southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. West wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain. Partly sunny, with a high near 48. Breezy, with a west northwest wind 16 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain and
    Breezy

Detailed Forecast

Today
A chance of flurries before noon, then a slight chance of snow between noon and 2pm. Partly sunny, with a high near 38. West northwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
A chance of flurries after 5am. Increasing clouds, with a low around 18. West northwest wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday
A slight chance of snow before 7am, then a chance of flurries between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 26. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 11. North northwest wind 5 to 10 mph becoming light and variable.
Sunday
Mostly sunny, with a high near 42. South wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 27. West wind 8 to 10 mph.
Monday
Mostly sunny, with a high near 50. West southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 36. West wind 10 to 15 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of rain. Partly sunny, with a high near 48. Breezy, with a west northwest wind 16 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of rain after midnight. Mostly cloudy, with a low around 26. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
A slight chance of rain. Partly sunny, with a high near 43. Breezy. 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:
10:37 am CST Jan 9, 2026
Forecast Valid:
11am CST Jan 9, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation