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

Pacific Storm System Moves Inland; Strong Storm in Alaska

A Pacific storm system will bring low elevation/valley rain and mountain snow as it moves inland to the central Great Basin through the central Rockies through Thursday. Scattered thunderstorms are likely from California into the Great Basin. A large low pressure system continues to bring snow, blizzard conditions, damaging winds, and mixed precipitation along the Bering Sea and Southwest Alaska. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

53°F

12°C

Humidity 34%
Wind Speed S 8 mph
Barometer 30.09 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 11 Feb 4:15 pm CST
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 55. Southeast wind around 9 mph.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Southeast wind 5 to 9 mph becoming light and variable after midnight.

    Low: 28 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 51. Light and variable wind becoming west northwest around 6 mph in the afternoon.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. Light and variable wind.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. South southeast wind around 5 mph becoming light and variable.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56. West northwest wind 5 to 7 mph.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. West northwest wind around 5 mph becoming light and variable.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60. South wind 5 to 9 mph.

    High: 60 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 55. Southeast wind around 9 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Southeast wind 5 to 9 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 51. Light and variable wind becoming west northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 26. Light and variable wind.
Friday
Sunny, with a high near 57. Calm wind becoming south southwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 31. South southeast wind around 5 mph becoming light and variable.
Saturday
Sunny, with a high near 56. West northwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 30. West northwest wind around 5 mph becoming light and variable.
Sunday
Partly sunny, with a high near 60. South wind 5 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 34.
Washington's Birthday
Mostly sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
A chance of rain. Partly sunny, with a high near 56. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
4:16 pm CST Feb 11, 2026
Forecast Valid:
4pm CST Feb 11, 2026-6pm CST Feb 17, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation