National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

A Wintry Mix in the Northeast; Rain and High Elevation Snow Returns to California

A clipper system tracking across the U.S./Canadian border will bring snowfall and mixed precipitation across the Northeast. A modest atmospheric river associated with a Pacific system will bring lower elevation/coastal rain, high elevation snow/wintry mix, and gusty winds in California into the Intermountain West. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

31°F

-1°C

Humidity 82%
Wind Speed NW 9 mph
Barometer 30.09 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 10 Feb 12:15 am CST
Extended Forecast for

Fort Thompson SD

  • Overnight

    Overnight: Partly cloudy, with a low around 27. West northwest wind 5 to 9 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. Northwest wind 5 to 10 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. Calm wind becoming southeast around 5 mph.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 50. South southeast wind 5 to 13 mph.

    High: 50 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A slight chance of rain. Mostly cloudy, with a low around 30. Southeast wind 8 to 11 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: Sunny, with a high near 50. East wind 6 to 8 mph becoming north in the morning.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 25. North wind around 6 mph becoming light and variable in the evening.

    Low: 25 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52. South southeast wind 3 to 7 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. Southeast wind 5 to 7 mph becoming southwest after midnight.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 27. West northwest wind 5 to 9 mph.
Tuesday
Sunny, with a high near 46. Northwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 25. Calm wind becoming southeast around 5 mph.
Wednesday
Increasing clouds, with a high near 50. South southeast wind 5 to 13 mph.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 30. Southeast wind 8 to 11 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 50. East wind 6 to 8 mph becoming north in the morning.
Thursday Night
Mostly clear, with a low around 25. North wind around 6 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 52. South southeast wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 29. Southeast wind 5 to 7 mph becoming southwest after midnight.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 31.
Washington's Birthday
Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
11:36 pm CST Feb 9, 2026
Forecast Valid:
12am CST Feb 10, 2026-6pm CST Feb 16, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation