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

Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

50°F

10°C

Humidity 50%
Wind Speed N 6 mph
Barometer 30.21 in (1018.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 7 Oct 8:53 pm MDT
Extended Forecast for

5 Miles E Custer SD

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 73. Light and variable wind. Winds could gust as high as 16 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. Light and variable wind.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Light west wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 30 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. West wind 5 to 8 mph, with gusts as high as 29 mph.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. West wind 6 to 10 mph, with gusts as high as 28 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain, mainly before noon. Partly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then
    Rain/Snow
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. Light and variable wind.
Thursday
Sunny, with a high near 73. Light and variable wind. Winds could gust as high as 16 mph.
Thursday Night
Mostly clear, with a low around 50. Light and variable wind.
Friday
Sunny, with a high near 80. Light west wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 30 mph.
Friday Night
Mostly clear, with a low around 56. West wind 5 to 8 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 79. West wind 6 to 10 mph, with gusts as high as 28 mph.
Saturday Night
A 30 percent chance of rain, mainly before midnight. Partly cloudy, with a low around 43.
Sunday
A chance of rain, mainly before noon. Partly sunny, with a high near 54.
Sunday Night
Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 35.
Columbus Day
A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 46.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Tuesday
A slight chance of rain. Partly sunny, with a high near 53.
Tuesday Night
A chance of rain. Partly cloudy, with a low around 37.
Wednesday
A chance of rain. Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Custer SD
 43.76°N 103.51°W (Elev. 5249 ft)
Last Update:
7:16 pm MDT Oct 7, 2026
Forecast Valid:
9pm MDT Oct 7, 2026-6pm MDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation