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

Rain and Thunderstorms in the Southeast; A Wintry Mix in the Southern Mid-Atlantic

A frontal system is expected to bring showers and thunderstorms along the Gulf Coast and Southeast, and some snow and/or freezing rain/drizzle over the southern Mid-Atlantic into the morning. A series of Clipper systems will bring periods of snow to the Northern Plains and Great Lakes over the next couple of days. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

26°F

-3°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.08 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 4 Feb 11:50 pm CST
Extended Forecast for

Fort Thompson SD

  • Overnight

    Overnight: Mostly cloudy, with a temperature rising to around 33 by 4am. South wind 5 to 14 mph becoming west northwest. Winds could gust as high as 23 mph.

    Low: 29 °F⇑

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. West northwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. West wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 42. North northwest wind 6 to 13 mph becoming northeast in the afternoon.

    High: 42 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24. East northeast wind 6 to 15 mph becoming southeast after midnight.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 52. Southeast wind 10 to 16 mph becoming west southwest in the afternoon.

    High: 52 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. West northwest wind 6 to 9 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56. West wind 6 to 10 mph.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31. West southwest wind 5 to 7 mph.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a temperature rising to around 33 by 4am. South wind 5 to 14 mph becoming west northwest. Winds could gust as high as 23 mph.
Thursday
Mostly sunny, with a high near 53. West northwest wind 10 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 32. West wind 9 to 14 mph, with gusts as high as 22 mph.
Friday
Increasing clouds, with a high near 42. North northwest wind 6 to 13 mph becoming northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 24. East northeast wind 6 to 15 mph becoming southeast after midnight.
Saturday
Mostly cloudy, with a high near 52. Southeast wind 10 to 16 mph becoming west southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 27. West northwest wind 6 to 9 mph.
Sunday
Sunny, with a high near 56. West wind 6 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 31. West southwest wind 5 to 7 mph.
Monday
Mostly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
11:36 pm CST Feb 4, 2026
Forecast Valid:
12am CST Feb 5, 2026-6pm CST Feb 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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