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

45°F

7°C

Humidity 72%
Wind Speed W 10 G 17 mph
Barometer 29.80 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 18 Mar 12:15 am CDT
Extended Forecast for

2 Miles WSW Fort Thompson SD

  • Overnight

    Overnight: Partly cloudy, with a low around 35. West wind 7 to 10 mph.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. West northwest wind 9 to 11 mph.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38. West northwest wind around 7 mph.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. West wind 6 to 10 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. West southwest wind around 7 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 75. West northwest wind 7 to 14 mph.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. West northwest wind 6 to 8 mph becoming south in the evening.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 80. Southwest wind 8 to 13 mph becoming northwest in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. North northwest wind 13 to 15 mph.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 35. West wind 7 to 10 mph.
Wednesday
Mostly sunny, with a high near 62. West northwest wind 9 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 38. West northwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 68. West wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around 42. West southwest wind around 7 mph.
Friday
Sunny, with a high near 75. West northwest wind 7 to 14 mph.
Friday Night
Mostly clear, with a low around 44. West northwest wind 6 to 8 mph becoming south in the evening.
Saturday
Mostly sunny, with a high near 80. Southwest wind 8 to 13 mph becoming northwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 37. North northwest wind 13 to 15 mph.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Fort Thompson SD
 44.03°N 99.43°W (Elev. 1401 ft)
Last Update:
12:26 am CDT Mar 18, 2026
Forecast Valid:
12am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation