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

27°F

-3°C

Humidity 70%
Wind Speed NW 15 mph
Barometer 30.34 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 10 Jan 4:35 pm CST
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 29. North northwest wind 8 to 11 mph.

    High: 29 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 16. North northwest wind 5 to 7 mph becoming calm.

    Low: 16 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 47. South southeast wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 47 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. West wind 6 to 10 mph.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. West southwest wind 6 to 11 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. West northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. Breezy, with a west northwest wind 17 to 24 mph, with gusts as high as 36 mph.

    High: 53 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. North northwest wind 14 to 17 mph, with gusts as high as 26 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 38. North wind 8 to 14 mph becoming southwest in the afternoon.

    High: 38 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 29. North northwest wind 8 to 11 mph.
Tonight
Partly cloudy, with a low around 16. North northwest wind 5 to 7 mph becoming calm.
Sunday
Sunny, with a high near 47. South southeast 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 6 to 10 mph.
Monday
Mostly sunny, with a high near 50. West southwest wind 6 to 11 mph.
Monday Night
Mostly cloudy, with a low around 38. West northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 53. Breezy, with a west northwest wind 17 to 24 mph, with gusts as high as 36 mph.
Tuesday Night
Mostly cloudy, with a low around 28. North northwest wind 14 to 17 mph, with gusts as high as 26 mph.
Wednesday
Partly sunny, with a high near 38. North wind 8 to 14 mph becoming southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 48. Breezy.
Thursday Night
Mostly cloudy, with a low around 25. Blustery.
Friday
A chance of snow. Mostly cloudy, with a high near 32. Windy. 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:
4:36 pm CST Jan 10, 2026
Forecast Valid:
4pm CST Jan 10, 2026-6pm CST Jan 16, 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