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

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

57°F

14°C

Humidity 45%
Wind Speed W 9 mph
Barometer 30.01 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 5 Feb 12:55 pm CST
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 59. West northwest wind 10 to 14 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Northwest wind 9 to 17 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 41. North northwest wind 6 to 15 mph becoming northeast in the afternoon.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24. East wind 6 to 16 mph becoming south southeast after midnight.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 52. South southeast wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 52 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. West northwest wind 6 to 8 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 57. West southwest wind 6 to 8 mph.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32. Southwest wind around 6 mph.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 58. South southwest wind 5 to 9 mph becoming north northeast in the afternoon.

    High: 58 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 59. West northwest wind 10 to 14 mph.
Tonight
Mostly clear, with a low around 33. Northwest wind 9 to 17 mph, with gusts as high as 29 mph.
Friday
Partly sunny, with a high near 41. North northwest wind 6 to 15 mph becoming northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 24. East wind 6 to 16 mph becoming south southeast after midnight.
Saturday
Mostly cloudy, with a high near 52. South southeast wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 27. West northwest wind 6 to 8 mph.
Sunday
Partly sunny, with a high near 57. West southwest wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 32. Southwest wind around 6 mph.
Monday
Mostly cloudy, with a high near 58. South southwest wind 5 to 9 mph becoming north northeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 41.
Tuesday Night
A slight chance of snow. Cloudy, with a low around 22. Chance of precipitation is 20%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
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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:
1:01 pm CST Feb 5, 2026
Forecast Valid:
1pm CST Feb 5, 2026-6pm CST Feb 11, 2026
 
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Additional Resources

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Chance of Precipitation