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

Blizzard Conditions Continue Tonight Across Coastal Maine; Critical Fire Weather in the Southern Plains Tuesday

Heavy snow and strong winds will continue into Tuesday morning across Maine as the major winter storm departs off the coast. Blizzard Warnings and Winter Storm Warnings remain in effect. Strong winds and dry conditions will promote elevated to critical fire weather conditions across southeast Colorado into the southern High Plains Tuesday. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

36°F

2°C

Humidity 53%
Wind Speed SE 7 mph
Barometer 29.91 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 23 Feb 8:55 pm CST
Extended Forecast for

Fort Thompson SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. South southeast wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 21 mph.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 47. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 34 mph.

    High: 47 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. North northwest wind 5 to 10 mph becoming east after midnight.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow. Mostly cloudy, with a high near 37. East southeast wind 6 to 11 mph. Chance of precipitation is 50%.

    High: 37 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21. East wind around 9 mph becoming west after midnight.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53. Breezy, with a west wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 53 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. South southwest wind around 9 mph.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 58. West wind 9 to 18 mph becoming north in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow after midnight. Mostly cloudy, with a low around 15. Northeast wind 13 to 16 mph. Chance of precipitation is 30%.

    Low: 15 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. South southeast wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 21 mph.
Tuesday
Mostly cloudy, with a high near 47. Breezy, with a northwest wind 14 to 22 mph, with gusts as high as 34 mph.
Tuesday Night
Mostly cloudy, with a low around 18. North northwest wind 5 to 10 mph becoming east after midnight.
Wednesday
A chance of snow. Mostly cloudy, with a high near 37. East southeast wind 6 to 11 mph. Chance of precipitation is 50%.
Wednesday Night
Partly cloudy, with a low around 21. East wind around 9 mph becoming west after midnight.
Thursday
Sunny, with a high near 53. Breezy, with a west wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Thursday Night
Mostly clear, with a low around 31. South southwest wind around 9 mph.
Friday
Mostly sunny, with a high near 58. West wind 9 to 18 mph becoming north in the afternoon.
Friday Night
A chance of snow after midnight. Mostly cloudy, with a low around 15. Northeast wind 13 to 16 mph. Chance of precipitation is 30%.
Saturday
A slight chance of snow before noon. Partly sunny, with a high near 27. Chance of precipitation is 20%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 8. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 27. Chance of precipitation is 30%.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 11. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 39.
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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:
8:37 pm CST Feb 23, 2026
Forecast Valid:
9pm CST Feb 23, 2026-6pm CST Mar 2, 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