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

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

44°F

7°C

Humidity 38%
Wind Speed S 6 mph
Barometer 30.10 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 24 Mar 12:55 am CDT
Extended Forecast for

Fort Thompson SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Southeast wind 5 to 8 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 61. East southeast wind 6 to 10 mph.

    High: 61 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43. West wind 6 to 11 mph becoming north 12 to 17 mph after midnight. Winds could gust as high as 26 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 56. Breezy, with a north wind 21 to 24 mph, with gusts as high as 33 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. Blustery, with a north northeast wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Low: 23 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 50. North northeast wind 5 to 9 mph becoming west northwest in the afternoon.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. Northwest wind 9 to 13 mph becoming south southeast in the evening.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Southeast wind 5 to 8 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 61. East southeast wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southeast wind 5 to 8 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 78. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 43. West wind 6 to 11 mph becoming north 12 to 17 mph after midnight. Winds could gust as high as 26 mph.
Thursday
Partly sunny, with a high near 56. Breezy, with a north wind 21 to 24 mph, with gusts as high as 33 mph.
Thursday Night
Mostly cloudy, with a low around 23. Blustery, with a north northeast wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Friday
Sunny, with a high near 50. North northeast wind 5 to 9 mph becoming west northwest in the afternoon.
Friday Night
Mostly clear, with a low around 27. Northwest wind 9 to 13 mph becoming south southeast in the evening.
Saturday
Sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
12:46 am CDT Mar 24, 2026
Forecast Valid:
1am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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Additional Resources

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Chance of Precipitation