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

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Mostly Cloudy

64°F

18°C

Humidity 45%
Wind Speed SE 17 G 21 mph
Barometer 30.20 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 20 May 2:35 pm CDT
Extended Forecast for

2 Miles W Fort Thompson SD

  • This Afternoon

    This Afternoon: A slight chance of showers after 4pm. Mostly cloudy, with a high near 66. South southeast wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 8pm. Mostly cloudy, with a low around 43. Southeast wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Breezy, with a south southeast wind 14 to 21 mph, with gusts as high as 29 mph.

    High: 70 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers before 3am, then a chance of showers after 4am. Increasing clouds, with a low around 44. Southeast wind 14 to 18 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 1pm. High near 59. East southeast wind 11 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers before 1am. Mostly cloudy, with a low around 41. Northeast wind 6 to 10 mph becoming west northwest after midnight. Chance of precipitation is 40%.

    Low: 41 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 71. Northwest wind around 6 mph.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. East northeast wind 5 to 7 mph becoming south southeast after midnight.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. South southeast wind 7 to 10 mph.

    High: 83 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers after 4pm. Mostly cloudy, with a high near 66. South southeast wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers before 8pm. Mostly cloudy, with a low around 43. Southeast wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 70. Breezy, with a south southeast wind 14 to 21 mph, with gusts as high as 29 mph.
Thursday Night
A slight chance of showers before 3am, then a chance of showers after 4am. Increasing clouds, with a low around 44. Southeast wind 14 to 18 mph. Chance of precipitation is 30%.
Friday
Showers, with thunderstorms also possible after 1pm. High near 59. East southeast wind 11 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
A chance of showers before 1am. Mostly cloudy, with a low around 41. Northeast wind 6 to 10 mph becoming west northwest after midnight. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 71. Northwest wind around 6 mph.
Saturday Night
Mostly clear, with a low around 44. East northeast wind 5 to 7 mph becoming south southeast after midnight.
Sunday
Sunny, with a high near 83. South southeast wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 51.
Memorial Day
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 87. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Fort Thompson SD
 44.05°N 99.46°W (Elev. 1365 ft)
Last Update:
2:36 pm CDT May 20, 2026
Forecast Valid:
2pm CDT May 20, 2026-6pm CDT May 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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