Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Light Snow and Breezy

28°F

-2°C

Humidity 100%
Wind Speed N 25 G 31 mph
Barometer 29.97 in
Dewpoint 28°F (-2°C)
Visibility 7.00 mi
Wind Chill13°F (-11°C)
Last update 28 Dec 1:15 am CST
Extended Forecast for

Fort Thompson SD

Wind Advisory until December 28, 06:00pm
Winter Weather Advisory until December 28, 09:00am
Click here for hazard details and duration
Wind Advisory
Winter Weather Advisory
  •  
    Wind Advisory until December 28, 06:00pm
    Winter Weather Advisory until December 28, 09:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 11 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Sunday

    Sunday: A chance of snow, mainly before 7am.  Mostly cloudy, with a temperature falling to around 10 by 9am. Windy, with a northwest wind 30 to 34 mph, with gusts as high as 47 mph.  Chance of precipitation is 30%.

    High: 15 °F

    Windy. Chance
    Snow then
    Partly Sunny

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 4. Blustery, with a northwest wind 21 to 28 mph, with gusts as high as 41 mph.

    Low: 4 °F

    Decreasing
    Clouds and
    Blustery

  • Monday

    Monday: Sunny, with a high near 19. Northwest wind 6 to 16 mph, with gusts as high as 25 mph.

    High: 19 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. South wind 5 to 7 mph.

    Low: 10 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. West northwest wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. West northwest wind 6 to 10 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow after noon.  Mostly cloudy, with a high near 36. West northwest wind 6 to 11 mph becoming east southeast in the morning.  Chance of precipitation is 20%.

    High: 36 °F

    Partly Sunny
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Snow likely, mainly between 2am and 4am. Patchy blowing snow between 2am and 4am. Cloudy, with a low around 11. Windy, with a north northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
A chance of snow, mainly before 7am. Mostly cloudy, with a temperature falling to around 10 by 9am. Windy, with a northwest wind 30 to 34 mph, with gusts as high as 47 mph. Chance of precipitation is 30%.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 4. Blustery, with a northwest wind 21 to 28 mph, with gusts as high as 41 mph.
Monday
Sunny, with a high near 19. Northwest wind 6 to 16 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 10. South wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 41. West northwest wind 7 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 20. West northwest wind 6 to 10 mph.
Wednesday
A slight chance of snow after noon. Mostly cloudy, with a high near 36. West northwest wind 6 to 11 mph becoming east southeast in the morning. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 11. North northeast wind 6 to 10 mph.
New Year's Day
Partly sunny, with a high near 25.
Thursday Night
Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
12:36 am CST Dec 28, 2025
1am CST Dec 28, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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