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 37%
Wind Speed E 7 mph
Barometer 30.05 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Oct 2:35 pm CDT
Extended Forecast for

16 Miles N Gann Valley SD

  • This Afternoon

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

    High: 69 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 40. North northeast wind around 10 mph.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. Northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 62 °F

    Sunny

  • Monday Night

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

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. South wind 9 to 17 mph, with gusts as high as 25 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. South southeast wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69. Calm wind becoming north northeast 5 to 9 mph in the morning.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. Northeast wind around 6 mph.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 72. South southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 69. Breezy, with a north northeast wind 18 to 21 mph.
Tonight
Mostly clear, with a low around 40. North northeast wind around 10 mph.
Monday
Sunny, with a high near 62. Northeast wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 43. South southeast wind around 8 mph.
Tuesday
Sunny, with a high near 68. South wind 9 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 48. South southeast wind 7 to 13 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 69. Calm wind becoming north northeast 5 to 9 mph in the morning.
Wednesday Night
Clear, with a low around 47. Northeast wind around 6 mph.
Thursday
Sunny, with a high near 72. South southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 57. Breezy.
Friday
A slight chance of showers. Partly sunny, with a high near 75. 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 40%.
Saturday
A slight chance of showers. Partly sunny, with a high near 64. Breezy. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles N Gann Valley SD
 44.26°N 99.02°W (Elev. 1768 ft)
2:41 pm CDT Oct 18, 2026
2pm CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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