National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hurricane Isaias Approaching the Gulf Coast; Remnants of Rachel to Impact the Southwest U.S.

Hurricane Isaias is expected to make landfall along the U.S. northern Gulf Coast late Friday or early Saturday. A life-threatening storm surge is expected along the coast with damaging wind gusts extending well inland. Areas of heavy rainfall are forecast throughout much of the Southeast U.S. The remnants of Rachel will bring gusty winds and heavy rainfall to the Southwest U.S. this weekend. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

57°F

14°C

Humidity 67%
Wind Speed E 3 mph
Barometer 29.99 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 8 Oct 11:15 pm CDT
Extended Forecast for

16 Miles N Gann Valley SD

  • Tonight

    Tonight: Partly cloudy, with a low around 50. East wind 5 to 7 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80. South southeast wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. South wind 15 to 17 mph, with gusts as high as 29 mph.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Breezy, with a south wind 18 to 21 mph, with gusts as high as 30 mph.

    High: 88 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. South wind 13 to 15 mph, with gusts as high as 24 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 74. North wind 15 to 17 mph.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46. North wind 14 to 16 mph.

    Low: 46 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: A slight chance of showers before 1pm. Mostly cloudy, with a high near 60. North northeast wind 14 to 17 mph. Chance of precipitation is 20%.

    High: 60 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. North wind 8 to 13 mph.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. East wind 5 to 7 mph.
Friday
Sunny, with a high near 80. South southeast wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Mostly clear, with a low around 65. South wind 15 to 17 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 88. Breezy, with a south wind 18 to 21 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 61. South wind 13 to 15 mph, with gusts as high as 24 mph.
Sunday
Partly sunny, with a high near 74. North wind 15 to 17 mph.
Sunday Night
Mostly cloudy, with a low around 46. North wind 14 to 16 mph.
Columbus Day
A slight chance of showers before 1pm. Mostly cloudy, with a high near 60. North northeast wind 14 to 17 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 41. North wind 8 to 13 mph.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 46. Chance of precipitation is 20%.
Wednesday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 61. Breezy. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles N Gann Valley SD
 44.26°N 99.02°W (Elev. 1768 ft)
Last Update:
11:21 pm CDT Oct 8, 2026
Forecast Valid:
11pm CDT Oct 8, 2026-6pm CDT Oct 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation