Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

-3°F

-19°C

Humidity 41%
Wind Speed NW 7 mph
Barometer 30.71 in
Dewpoint -21°F (-29°C)
Visibility 10.00 mi
Wind Chill-17°F (-27°C)
Last update 23 Jan 2:55 pm CST
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: Mostly cloudy and cold, with a high near -2. North wind 3 to 6 mph.

    High: -2 °F

    Cold

  • Tonight

    Tonight: Mostly cloudy, with a low around -7. Wind chill values as low as -19. Calm wind becoming southeast around 6 mph after midnight.

    Low: -7 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 14. Wind chill values as low as -20. South wind 6 to 10 mph.

    High: 14 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around -3. Southeast wind around 6 mph becoming north northeast after midnight.

    Low: -3 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny and cold, with a high near 6. North wind 7 to 11 mph.

    High: 6 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -11. North northwest wind 5 to 9 mph becoming south southwest after midnight.

    Low: -11 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 29. South southwest wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 6. Northwest wind 7 to 10 mph.

    Low: 6 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. Northwest wind 6 to 9 mph.

    High: 22 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy and cold, with a high near -2. North wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around -7. Wind chill values as low as -19. Calm wind becoming southeast around 6 mph after midnight.
Saturday
Mostly sunny, with a high near 14. Wind chill values as low as -20. South wind 6 to 10 mph.
Saturday Night
Increasing clouds, with a low around -3. Southeast wind around 6 mph becoming north northeast after midnight.
Sunday
Partly sunny and cold, with a high near 6. North wind 7 to 11 mph.
Sunday Night
Mostly clear, with a low around -11. North northwest wind 5 to 9 mph becoming south southwest after midnight.
Monday
Sunny, with a high near 29. South southwest wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 6. Northwest wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 22. Northwest wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 6.
Wednesday
A slight chance of snow. Partly sunny, with a high near 24. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 2.
Thursday
Partly sunny, with a high near 19.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
2:52 pm CST Jan 23, 2026
3pm CST Jan 23, 2026-6pm CST Jan 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database