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

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

40°F

4°C

Humidity 99%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 18 Nov 4:15 pm CST
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: Cloudy, with a high near 44. Calm wind.

    High: 44 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Southeast wind 3 to 8 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. Southeast wind around 9 mph becoming northwest in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. Northwest wind around 8 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50. Northwest wind 5 to 7 mph.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. North northwest wind around 5 mph becoming light and variable.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 53. South wind 5 to 9 mph.

    High: 53 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. South southeast wind around 8 mph becoming west southwest after midnight.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56. West northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 56 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 44. Calm wind.
Tonight
Mostly cloudy, with a low around 33. Southeast wind 3 to 8 mph.
Wednesday
Mostly sunny, with a high near 60. Southeast wind around 9 mph becoming northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 33. Northwest wind around 8 mph.
Thursday
Sunny, with a high near 50. Northwest wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 28. North northwest wind around 5 mph becoming light and variable.
Friday
Mostly sunny, with a high near 53. South wind 5 to 9 mph.
Friday Night
Mostly clear, with a low around 33. South southeast wind around 8 mph becoming west southwest after midnight.
Saturday
Sunny, with a high near 56. West northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
3:36 pm CST Nov 18, 2025
Forecast Valid:
4pm CST Nov 18, 2025-6pm CST Nov 24, 2025
 
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