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.

Overcast

27°F

-3°C

Humidity 100%
Wind Speed SE 10 mph
Barometer 30.35 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 23 Mar 7:35 am CDT
Extended Forecast for

Fort Thompson SD

  • Today

    Today: A chance of sprinkles between 1pm and 3pm. Increasing clouds, with a high near 56. Breezy, with a south southeast wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 56 °F

    Mostly Cloudy
    then Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Southeast wind 8 to 18 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. East southeast wind 6 to 9 mph.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. East southeast wind around 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. East wind 6 to 9 mph becoming west in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. West northwest wind 6 to 13 mph becoming east southeast in the evening.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54. Breezy, with a north wind 15 to 25 mph, with gusts as high as 36 mph.

    High: 54 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 21. Blustery, with a north wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 28 mph.

    Low: 21 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 51. North wind 6 to 10 mph becoming west northwest in the afternoon.

    High: 51 °F

    Sunny

Detailed Forecast

Today
A chance of sprinkles between 1pm and 3pm. Increasing clouds, with a high near 56. Breezy, with a south southeast wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph.
Tonight
Partly cloudy, with a low around 32. Southeast wind 8 to 18 mph.
Tuesday
Mostly cloudy, with a high near 65. East southeast wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 40. East southeast wind around 7 mph.
Wednesday
Mostly sunny, with a high near 75. East wind 6 to 9 mph becoming west in the afternoon.
Wednesday Night
Partly cloudy, with a low around 42. West northwest wind 6 to 13 mph becoming east southeast in the evening.
Thursday
Mostly sunny, with a high near 54. Breezy, with a north wind 15 to 25 mph, with gusts as high as 36 mph.
Thursday Night
Mostly cloudy, with a low around 21. Blustery, with a north wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 28 mph.
Friday
Sunny, with a high near 51. North wind 6 to 10 mph becoming west northwest in the afternoon.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 69.
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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:
7:36 am CDT Mar 23, 2026
Forecast Valid:
7am CDT Mar 23, 2026-6pm CDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation