Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

0°F

-18°C

Humidity 81%
Wind Speed Calm
Barometer 30.18 in
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Last update 25 Jan 2:15 am CST
Extended Forecast for

Fort Thompson SD

  • Overnight

    Overnight: A chance of flurries between 4am and 5am, then a slight chance of snow after 5am.  Mostly cloudy, with a steady temperature around 2. North wind 6 to 8 mph.  Chance of precipitation is 20%.

    Low: 2 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A slight chance of snow before 8am.  Cloudy, then gradually becoming mostly sunny and cold, with a high near 3. Wind chill values as low as -18. North wind 8 to 13 mph.  Chance of precipitation is 20%.

    High: 3 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -10. Wind chill values as low as -21. North northwest wind 5 to 10 mph becoming south after midnight.

    Low: -10 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 29. Wind chill values as low as -19. South wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 4. Northwest wind 9 to 13 mph.

    Low: 4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 19. Northwest wind 6 to 9 mph.

    High: 19 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 6. West wind 3 to 5 mph.

    Low: 6 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 24. North northwest wind 5 to 9 mph.

    High: 24 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 5. North northeast wind around 7 mph becoming east southeast in the evening.

    Low: 5 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries between 4am and 5am, then a slight chance of snow after 5am. Mostly cloudy, with a steady temperature around 2. North wind 6 to 8 mph. Chance of precipitation is 20%.
Sunday
A slight chance of snow before 8am. Cloudy, then gradually becoming mostly sunny and cold, with a high near 3. Wind chill values as low as -18. North wind 8 to 13 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around -10. Wind chill values as low as -21. North northwest wind 5 to 10 mph becoming south after midnight.
Monday
Sunny, with a high near 29. Wind chill values as low as -19. South wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Partly cloudy, with a low around 4. Northwest wind 9 to 13 mph.
Tuesday
Sunny, with a high near 19. Northwest wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 6. West wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 24. North northwest wind 5 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 5. North northeast wind around 7 mph becoming east southeast in the evening.
Thursday
Mostly cloudy, with a high near 21.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around -1. Chance of precipitation is 20%.
Friday
A slight chance of snow. Mostly sunny, with a high near 17. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 2.
Saturday
A slight chance of snow. Partly sunny, with a high near 25. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
2:17 am CST Jan 25, 2026
2am CST Jan 25, 2026-6pm CST Jan 31, 2026
 
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Additional Resources

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