Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

69°F

21°C

Humidity 35%
Wind Speed NE 5 mph
Barometer 30.05 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 18 Oct 3:15 pm CDT
Extended Forecast for

8 Miles SE Fort Thompson SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 69. Breezy, with a northeast wind 18 to 21 mph, with gusts as high as 29 mph.

    High: 69 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 42. Northeast wind 9 to 15 mph, with gusts as high as 23 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 63. East wind around 10 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. Southeast wind around 8 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. South southeast wind 8 to 16 mph, with gusts as high as 24 mph.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. South southeast wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Light and variable wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 48. Northeast wind 3 to 6 mph.

    Low: 48 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 73. South southeast wind 5 to 15 mph, with gusts as high as 24 mph.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 69. Breezy, with a northeast wind 18 to 21 mph, with gusts as high as 29 mph.
Tonight
Increasing clouds, with a low around 42. Northeast wind 9 to 15 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 63. East wind around 10 mph.
Monday Night
Mostly clear, with a low around 43. Southeast wind around 8 mph.
Tuesday
Sunny, with a high near 69. South southeast wind 8 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 49. South southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 70. Light and variable wind becoming north northeast 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 48. Northeast wind 3 to 6 mph.
Thursday
Sunny, with a high near 73. South southeast wind 5 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 57.
Friday
A slight chance of showers. Partly sunny, with a high near 76. Breezy. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Breezy. Chance of precipitation is 50%.
Saturday
A slight chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SE Fort Thompson SD
 43.97°N 99.28°W (Elev. 1519 ft)
3:21 pm CDT Oct 18, 2026
3pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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