Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair and Breezy

64°F

18°C

Humidity 24%
Wind Speed S 21 mph
Barometer 29.84 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 15 Feb 12:55 pm CST
Extended Forecast for

Gann Valley SD

Red Flag Warning until February 15, 06:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until February 15, 06:00pm

    NOW until 6:00pm Sun

    Red Flag Warning

  • This Afternoon

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 30. West southwest wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 30 °F

    Decreasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 59. Light and variable wind becoming east southeast 5 to 10 mph in the morning.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. East southeast wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain, mainly after noon.  Mostly cloudy, with a high near 61. East southeast wind 11 to 18 mph becoming south southwest in the afternoon.  Chance of precipitation is 30%.

    High: 61 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain.  Partly cloudy, with a low around 32. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph after midnight.  Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: A slight chance of rain and snow before noon.  Sunny, with a high near 44. Breezy, with a west wind 17 to 23 mph, with gusts as high as 31 mph.  Chance of precipitation is 20%.

    High: 44 °F

    Breezy.
    Slight Chance
    Rain/Snow
    then Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow after midnight.  Mostly cloudy, with a low around 17. Blustery, with a north wind 16 to 20 mph.  Chance of precipitation is 20%.

    Low: 17 °F

    Partly Cloudy
    then Slight
    Chance Snow
    and Blustery

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 63. South wind 9 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 30. West southwest wind 5 to 9 mph becoming light and variable after midnight.
Washington's Birthday
Sunny, with a high near 59. Light and variable wind becoming east southeast 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 37. East southeast wind 8 to 14 mph, with gusts as high as 22 mph.
Tuesday
A chance of rain, mainly after noon. Mostly cloudy, with a high near 61. East southeast wind 11 to 18 mph becoming south southwest in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Partly cloudy, with a low around 32. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Chance of precipitation is 30%.
Wednesday
A slight chance of rain and snow before noon. Sunny, with a high near 44. Breezy, with a west wind 17 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 17. Blustery, with a north wind 16 to 20 mph. Chance of precipitation is 20%.
Thursday
A chance of snow. Mostly cloudy, with a high near 25. Blustery, with a north wind 20 to 23 mph. Chance of precipitation is 50%.
Thursday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 6. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 25.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 20%.
Saturday
A slight chance of snow. Partly sunny, with a high near 30. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Gann Valley SD
 44.04°N 98.98°W (Elev. 1709 ft)
12:31 pm CST Feb 15, 2026
1pm CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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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