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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

19°F

-7°C

Humidity 100%
Wind Speed N 10 mph
Barometer 30.01 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 6 Dec 7:55 pm CST
Extended Forecast for

Fort Thompson SD

  • Tonight

    Tonight: Patchy snow and freezing rain before 10pm, then a slight chance of snow between 10pm and 3am. Cloudy, with a low around 8. North northeast wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 8 °F

    Patchy Wintry
    Mix then
    Slight Chance
    Snow

  • Sunday

    Sunday: A chance of snow, mainly between 10am and 3pm. Cloudy, with a high near 18. East northeast wind 6 to 13 mph becoming southeast in the afternoon. Chance of precipitation is 50%.

    High: 18 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 12. South southeast wind 6 to 10 mph.

    Low: 12 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39. South southeast wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. West wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after noon. Mostly cloudy, with a high near 49. Breezy, with a south southwest wind 7 to 12 mph becoming west northwest 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 20%.

    High: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16. Blustery, with a northwest wind 17 to 26 mph, with gusts as high as 45 mph.

    Low: 16 °F

    Mostly Cloudy
    and Blustery

  • Wednesday

    Wednesday: A slight chance of snow after noon. Mostly cloudy, with a high near 28. Northwest wind 10 to 16 mph becoming south southeast in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    High: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 13. East southeast wind around 11 mph becoming northwest after midnight. Chance of precipitation is 30%.

    Low: 13 °F

    Chance Snow

Detailed Forecast

Tonight
Patchy snow and freezing rain before 10pm, then a slight chance of snow between 10pm and 3am. Cloudy, with a low around 8. North northeast wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Sunday
A chance of snow, mainly between 10am and 3pm. Cloudy, with a high near 18. East northeast wind 6 to 13 mph becoming southeast in the afternoon. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 12. South southeast wind 6 to 10 mph.
Monday
Mostly sunny, with a high near 39. South southeast wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 25. West wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday
A slight chance of rain after noon. Mostly cloudy, with a high near 49. Breezy, with a south southwest wind 7 to 12 mph becoming west northwest 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 16. Blustery, with a northwest wind 17 to 26 mph, with gusts as high as 45 mph.
Wednesday
A slight chance of snow after noon. Mostly cloudy, with a high near 28. Northwest wind 10 to 16 mph becoming south southeast in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 13. East southeast wind around 11 mph becoming northwest after midnight. Chance of precipitation is 30%.
Thursday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 21. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 2.
Friday
Partly sunny, with a high near 12.
Friday Night
Mostly cloudy, with a low around -3.
Saturday
Partly sunny, with a high near 15.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
7:36 pm CST Dec 6, 2025
Forecast Valid:
8pm CST Dec 6, 2025-6pm CST Dec 13, 2025
 
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