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

49°F

9°C

Humidity 49%
Wind Speed W 8 mph
Barometer 29.53 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 9 Mar 2:15 am CDT
Extended Forecast for

Fort Thompson SD

  • Overnight

    Overnight: Partly cloudy, with a low around 34. North northwest wind 6 to 8 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 58. North wind 8 to 10 mph becoming east southeast in the afternoon.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 26. Blustery, with a northeast wind 14 to 20 mph, with gusts as high as 28 mph.

    Low: 26 °F

    Partly Cloudy
    then Mostly
    Cloudy and
    Blustery

  • Tuesday

    Tuesday: A slight chance of rain and snow between 1pm and 4pm, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 44. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 44 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow likely, possibly mixed with rain before 1am, then a chance of snow. Cloudy, with a low around 25. North northeast wind 8 to 13 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 46. West northwest wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. West northwest wind 6 to 10 mph becoming south after midnight.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 64. Breezy, with a south wind 10 to 15 mph becoming west 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 20%.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 33 mph.

    Low: 28 °F

    Mostly Cloudy
    and Blustery

Detailed Forecast

Overnight
Partly cloudy, with a low around 34. North northwest wind 6 to 8 mph.
Monday
Sunny, with a high near 58. North wind 8 to 10 mph becoming east southeast in the afternoon.
Monday Night
Increasing clouds, with a low around 26. Blustery, with a northeast wind 14 to 20 mph, with gusts as high as 28 mph.
Tuesday
A slight chance of rain and snow between 1pm and 4pm, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 44. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Snow likely, possibly mixed with rain before 1am, then a chance of snow. Cloudy, with a low around 25. North northeast wind 8 to 13 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
Sunny, with a high near 46. West northwest wind 9 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 26. West northwest wind 6 to 10 mph becoming south after midnight.
Thursday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 64. Breezy, with a south wind 10 to 15 mph becoming west 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 28. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 33 mph.
Friday
A slight chance of snow. Cloudy, with a high near 46. Chance of precipitation is 20%.
Friday Night
A chance of snow. Cloudy, with a low around 29. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.
Saturday Night
Rain and snow likely. Cloudy, with a low around 18. Chance of precipitation is 70%.
Sunday
A chance of snow. Mostly cloudy, with a high near 32. Breezy. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
Last Update:
1:26 am CDT Mar 9, 2026
Forecast Valid:
2am CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation