Showers and Thunderstorms from the Southern Plains into the Ohio Valley; Record Warmth in the Central U.S.

Heavy rain and widely scattered severe storms are expected over portions of the central and southern Plains into the Ohio Valley. Unseasonable warmth will continue for a few more days across the Midwest, Southeast, and Mid-Atlantic where several daily record highs could fall. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

51°F

11°C

Humidity 67%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 14 Oct 12:15 pm CDT
Extended Forecast for

Fort Thompson SD

  • This Afternoon

    This Afternoon: Mostly cloudy early, then becoming sunny, with a high near 60. Light northeast wind.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Showers likely, mainly after 3am.  Patchy fog between 2am and 3am.  Otherwise, cloudy, with a low around 45. East wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before 11am.  Patchy fog before 10am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a light northwest wind increasing to 21 to 26 mph in the morning. Winds could gust as high as 38 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 37. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 38 mph.

    Low: 37 °F

    Increasing
    Clouds and
    Breezy

  • Friday

    Friday: Sunny, with a high near 52. Breezy, with a north northwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 52 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Friday Night

    Friday Night: Clear, with a low around 35. Light and variable wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 20 mph.

    Low: 35 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 69. South wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. South wind 7 to 15 mph, with gusts as high as 24 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 70. South wind 6 to 9 mph becoming north in the afternoon.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy early, then becoming sunny, with a high near 60. Light northeast wind.
Tonight
Showers likely, mainly after 3am. Patchy fog between 2am and 3am. Otherwise, cloudy, with a low around 45. East wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly before 11am. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a light northwest wind increasing to 21 to 26 mph in the morning. Winds could gust as high as 38 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Increasing clouds, with a low around 37. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 38 mph.
Friday
Sunny, with a high near 52. Breezy, with a north northwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 31 mph.
Friday Night
Clear, with a low around 35. Light and variable wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 69. South wind 13 to 18 mph, with gusts as high as 29 mph.
Saturday Night
Mostly clear, with a low around 45. South wind 7 to 15 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 70. South wind 6 to 9 mph becoming north in the afternoon.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
12:21 pm CDT Oct 14, 2026
12pm CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database