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

Tracking Areas of Fire Weather, Severe Weather, and Winter Weather

Gusty winds and dry conditions will continue to bring fire weather concerns to the southern Plains through Friday. Severe thunderstorms including a few tornadoes, large hail and damaging wind gusts are expected across parts of the Midwest and lower Ohio Valley today. A Pacific storm will bring low elevation rain and thunderstorms across southern California and heavy snow through the Sierra. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair and Breezy

17°F

-8°C

Humidity 55%
Wind Speed NW 23 G 29 mph
Barometer 29.88 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 19 Feb 5:55 pm CST
Extended Forecast for

Fort Thompson SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 8. Blustery, with a north northwest wind 13 to 20 mph.

    Low: 8 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 25. Northwest wind 9 to 11 mph.

    High: 25 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 8. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 8 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 31. Light north wind becoming northwest 5 to 10 mph in the morning.

    High: 31 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 8. North northwest wind 7 to 9 mph.

    Low: 8 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 29. North northwest wind 7 to 10 mph.

    High: 29 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 4. North northeast wind around 8 mph becoming east southeast after midnight.

    Low: 4 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42. South southeast wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. South southeast wind 6 to 14 mph becoming southwest after midnight.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 8. Blustery, with a north northwest wind 13 to 20 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 25. Northwest wind 9 to 11 mph.
Friday Night
Partly cloudy, with a low around 8. North northwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 31. Light north wind becoming northwest 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 8. North northwest wind 7 to 9 mph.
Sunday
Sunny, with a high near 29. North northwest wind 7 to 10 mph.
Sunday Night
Partly cloudy, with a low around 4. North northeast wind around 8 mph becoming east southeast after midnight.
Monday
Sunny, with a high near 42. South southeast wind 9 to 18 mph, with gusts as high as 26 mph.
Monday Night
Mostly cloudy, with a low around 24. South southeast wind 6 to 14 mph becoming southwest after midnight.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 55.
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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:
6:06 pm CST Feb 19, 2026
Forecast Valid:
6pm CST Feb 19, 2026-6pm CST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation