Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

23°F

-5°C

Humidity 74%
Wind Speed E 5 mph
Barometer 30.32 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 29 Jan 5:35 pm CST
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: A slight chance of snow.  Cloudy, with a high near 23. East northeast wind around 6 mph.  Chance of precipitation is 20%.

    High: 23 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A slight chance of snow between 2am and 3am.  Mostly cloudy, with a low around -3. Northeast wind 6 to 9 mph.  Chance of precipitation is 20%.

    Low: -3 °F

    Slight Chance
    Snow

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny and cold, with a high near 8. Northeast wind 5 to 9 mph.

    High: 8 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around -5. Wind chill values as low as -19. East wind 5 to 9 mph becoming south southeast in the evening.

    Low: -5 °F

    Mostly Clear

  • Saturday

    Saturday: Snow likely after noon.  Mostly cloudy, with a high near 31. South wind 10 to 17 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Partly Sunny
    then Snow
    Likely

  • Saturday Night

    Saturday Night: A chance of snow before 9pm, then a chance of freezing rain between 9pm and midnight.  Mostly cloudy, with a low around 23. South wind 10 to 14 mph becoming west northwest after midnight.  Chance of precipitation is 30%.

    Low: 23 °F

    Chance Wintry
    Mix then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 37. Northwest wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 37 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 15. North northwest wind 5 to 7 mph becoming light and variable.

    Low: 15 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 31. East southeast wind 6 to 11 mph.

    High: 31 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A slight chance of snow. Cloudy, with a high near 23. East northeast wind around 6 mph. Chance of precipitation is 20%.
Tonight
A slight chance of snow between 2am and 3am. Mostly cloudy, with a low around -3. Northeast wind 6 to 9 mph. Chance of precipitation is 20%.
Friday
Mostly cloudy, then gradually becoming sunny and cold, with a high near 8. Northeast wind 5 to 9 mph.
Friday Night
Mostly clear, with a low around -5. Wind chill values as low as -19. East wind 5 to 9 mph becoming south southeast in the evening.
Saturday
Snow likely after noon. Mostly cloudy, with a high near 31. South wind 10 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
A chance of snow before 9pm, then a chance of freezing rain between 9pm and midnight. Mostly cloudy, with a low around 23. South wind 10 to 14 mph becoming west northwest after midnight. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 37. Northwest wind 9 to 16 mph, with gusts as high as 24 mph.
Sunday Night
Mostly cloudy, with a low around 15. North northwest wind 5 to 7 mph becoming light and variable.
Monday
Mostly cloudy, with a high near 31. East southeast wind 6 to 11 mph.
Monday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 17. Chance of precipitation is 20%.
Tuesday
A chance of snow. Partly sunny, with a high near 34. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Mostly cloudy, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
5:36 pm CST Jan 29, 2026
5pm CST Jan 29, 2026-6pm CST Feb 5, 2026
 
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Additional Resources

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