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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

27°F

-3°C

Humidity 68%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 13 Feb 12:35 am CST
Extended Forecast for

11 Miles N Gann Valley SD

  • Overnight

    Overnight: Mostly clear, with a low around 28. Light and variable wind becoming southwest around 5 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. South southwest wind around 6 mph.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. South wind around 6 mph becoming north northwest after midnight.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 55. Northwest wind 5 to 8 mph.

    High: 55 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Northwest wind around 6 mph becoming southwest after midnight.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 61. South wind 6 to 14 mph.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. Southwest wind 8 to 10 mph becoming north after midnight.

    Low: 33 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 57. North northeast wind 8 to 10 mph becoming east southeast in the afternoon.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. East southeast wind 9 to 14 mph.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 28. Light and variable wind becoming southwest around 5 mph.
Friday
Sunny, with a high near 59. South southwest wind around 6 mph.
Friday Night
Partly cloudy, with a low around 33. South wind around 6 mph becoming north northwest after midnight.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 55. Northwest wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 30. Northwest wind around 6 mph becoming southwest after midnight.
Sunday
Partly sunny, with a high near 61. South wind 6 to 14 mph.
Sunday Night
Partly cloudy, with a low around 33. Southwest wind 8 to 10 mph becoming north after midnight.
Washington's Birthday
Sunny, with a high near 57. North northeast wind 8 to 10 mph becoming east southeast in the afternoon.
Monday Night
Partly cloudy, with a low around 39. East southeast wind 9 to 14 mph.
Tuesday
A chance of rain after noon. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Wednesday
A chance of rain and snow. Mostly sunny, with a high near 43. Chance of precipitation is 30%.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 21. Chance of precipitation is 20%.
Thursday
A slight chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles N Gann Valley SD
 44.19°N 98.96°W (Elev. 2014 ft)
Last Update:
12:31 am CST Feb 13, 2026
Forecast Valid:
12am CST Feb 13, 2026-6pm CST Feb 19, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation