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.

Overcast

48°F

9°C

Humidity 86%
Wind Speed N 8 mph
Barometer 30.34 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 25 Apr 10:55 am CDT
Extended Forecast for

Fort Thompson SD

  • Today

    Today: Partly sunny, with a high near 61. Northeast wind 9 to 13 mph.

    High: 61 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. East wind 5 to 8 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 59. Breezy, with a southeast wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 30%.

    High: 59 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 4am, then a chance of showers and thunderstorms after 4am. Cloudy, with a low around 48. Breezy, with a south southeast wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 48 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Breezy, with a south southeast wind 16 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 73 °F

    Breezy.
    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 54. Southeast wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 75. Breezy, with a south southwest wind 9 to 14 mph becoming west 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 36. Breezy, with a north northwest wind 16 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.

    Low: 36 °F

    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. North northwest wind around 11 mph, with gusts as high as 20 mph.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 61. Northeast wind 9 to 13 mph.
Tonight
Mostly cloudy, with a low around 40. East wind 5 to 8 mph.
Saturday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 59. Breezy, with a southeast wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 4am, then a chance of showers and thunderstorms after 4am. Cloudy, with a low around 48. Breezy, with a south southeast wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Breezy, with a south southeast wind 16 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Sunday Night
Showers and possibly a thunderstorm. Low around 54. Southeast wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 75. Breezy, with a south southwest wind 9 to 14 mph becoming west 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 36. Breezy, with a north northwest wind 16 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Tuesday
Mostly sunny, with a high near 61. North northwest wind around 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 73. Chance of precipitation is 20%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 44. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
10:46 am CDT Apr 25, 2025
Forecast Valid:
11am CDT Apr 25, 2025-6pm CDT May 1, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation