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 36%
Wind Speed E 7 mph
Barometer 30.05 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 18 Oct 2:55 pm CDT
Extended Forecast for

6 Miles NNW Fort Thompson SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 70. Breezy, with a northeast wind 17 to 20 mph, with gusts as high as 28 mph.

    High: 70 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 43. North northeast wind 10 to 13 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 63. East wind around 11 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Southeast wind around 9 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. South southeast wind 9 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 11 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Light and variable wind becoming north northeast 5 to 8 mph in the morning.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 48. Northeast wind 5 to 7 mph.

    Low: 48 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Southeast wind 6 to 16 mph, with gusts as high as 24 mph.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 70. Breezy, with a northeast wind 17 to 20 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 43. North northeast wind 10 to 13 mph.
Monday
Sunny, with a high near 63. East wind around 11 mph.
Monday Night
Mostly clear, with a low around 44. Southeast wind around 9 mph.
Tuesday
Sunny, with a high near 69. South southeast wind 9 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 49. South southeast wind 6 to 11 mph.
Wednesday
Sunny, with a high near 70. Light and variable wind becoming north northeast 5 to 8 mph in the morning.
Wednesday Night
Clear, with a low around 48. Northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 73. Southeast wind 6 to 16 mph, with gusts as high as 24 mph.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 57. Chance of precipitation is 20%.
Friday
A chance of showers. Partly sunny, with a high near 76. Breezy. Chance of precipitation is 30%.
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. Mostly sunny, with a high near 64. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Fort Thompson SD
 44.12°N 99.46°W (Elev. 1650 ft)
2:41 pm CDT Oct 18, 2026
2pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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