Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

73°F

23°C

Humidity 29%
Wind Speed SW 10 G 18 mph
Barometer 30.03 in (1010.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 30 Sep 11:53 am MDT
Extended Forecast for

3 Miles SSE Custer County Airport SD

  • Today

    Today: Increasing clouds, with a high near 78. Southwest wind 8 to 10 mph, with gusts as high as 23 mph.

    High: 78 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 52. Southwest wind around 8 mph, with gusts as high as 22 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75. West wind 5 to 9 mph, with gusts as high as 22 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Light and variable wind becoming west around 5 mph after midnight.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Northwest wind 5 to 8 mph becoming east in the afternoon. Winds could gust as high as 18 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers, mainly after midnight.  Partly cloudy, with a low around 48. East wind around 6 mph becoming light and variable  after midnight. Winds could gust as high as 16 mph.

    Low: 48 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly after noon.  Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 78. Southwest wind 8 to 10 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 52. Southwest wind around 8 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 75. West wind 5 to 9 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 51. Light and variable wind.
Thursday
Sunny, with a high near 78. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.
Thursday Night
Mostly clear, with a low around 53. Light and variable wind becoming west around 5 mph after midnight.
Friday
Sunny, with a high near 77. Northwest wind 5 to 8 mph becoming east in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A chance of showers, mainly after midnight. Partly cloudy, with a low around 48. East wind around 6 mph becoming light and variable after midnight. Winds could gust as high as 16 mph.
Saturday
A chance of showers, mainly after noon. Partly sunny, with a high near 66.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40.
Sunday
A chance of showers. Partly sunny, with a high near 55.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 36.
Monday
A chance of showers. Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Custer County Airport SD
 43.69°N 103.6°W (Elev. 5400 ft)
11:07 am MDT Sep 30, 2025
11am MDT Sep 30, 2025-6pm MDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database