Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

16°F

-9°C

Humidity 91%
Wind Speed SE 8 mph
Barometer 30.05 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 1 Jan 1:55 am CST
Extended Forecast for

Fort Thompson SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 11. East southeast wind around 7 mph.

    Low: 11 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 31. East southeast wind 5 to 7 mph becoming light and variable.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15. North northeast wind around 5 mph becoming light and variable.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, with a high near 26. East wind 6 to 8 mph.

    High: 26 °F

    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17. East wind around 5 mph becoming light and variable  after midnight.

    Low: 17 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 36. Light and variable wind becoming northwest around 6 mph in the morning.

    High: 36 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. Northeast wind 6 to 13 mph becoming east southeast after midnight.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 43. East southeast wind 8 to 13 mph becoming west northwest in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. North northwest wind 5 to 7 mph becoming south southeast after midnight.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 11. East southeast wind around 7 mph.
New Year's Day
Mostly sunny, with a high near 31. East southeast wind 5 to 7 mph becoming light and variable.
Thursday Night
Mostly cloudy, with a low around 15. North northeast wind around 5 mph becoming light and variable.
Friday
Cloudy, with a high near 26. East wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 17. East wind around 5 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 36. Light and variable wind becoming northwest around 6 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 20. Northeast wind 6 to 13 mph becoming east southeast after midnight.
Sunday
Mostly sunny, with a high near 43. East southeast wind 8 to 13 mph becoming west northwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 23. North northwest wind 5 to 7 mph becoming south southeast after midnight.
Monday
Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
1:36 am CST Jan 1, 2026
2am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database