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.

Fair

63°F

17°C

Humidity 68%
Wind Speed N 7 mph
Barometer 30.16 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Jun 2:15 am CDT
Extended Forecast for

3 Miles WNW Fort Thompson SD

  • Overnight

    Overnight: Mostly clear, with a low around 53. West northwest wind around 8 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. North northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 75. East northeast wind 3 to 6 mph.

    High: 75 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 54. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 79. Southeast wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. Breezy, with a southeast wind 17 to 20 mph.

    Low: 61 °F

    Partly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Breezy, with a south southeast wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65. Breezy, with a southeast wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
Mostly clear, with a low around 53. West northwest wind around 8 mph.
Wednesday
Sunny, with a high near 76. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 51. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Increasing clouds, with a high near 75. East northeast wind 3 to 6 mph.
Thursday Night
Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 54. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 79. Southeast wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 61. Breezy, with a southeast wind 17 to 20 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Breezy, with a south southeast wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65. Breezy, with a southeast wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny and hot, with a high near 92.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 63. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Fort Thompson SD
 44.07°N 99.46°W (Elev. 1480 ft)
Last Update:
1:31 am CDT Jun 24, 2026
Forecast Valid:
2am CDT Jun 24, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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Additional Resources

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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