Heavy Rain and Flooding Threat in the Ohio Valley

Gulf moisture will combine with a cold front and will bring heavy rain and scattered flash flooding over parts of the Mid-South into the Ohio Valley through the morning and the Ohio Valley and Central Appalachians on Tuesday. Showers and thunderstorms, some severe, are expected over the Southern Rockies/Southern High Plains on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

35°F

2°C

Humidity 89%
Wind Speed NW 3 mph
Barometer 30.24 in (1025.1 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 6 Oct 9:53 pm MDT
Extended Forecast for

4 Miles WSW Mount Rushmore SD

  • Tonight

    Tonight: Widespread frost.  Otherwise, mostly clear, with a low around 30. West wind around 7 mph.

    Low: 30 °F

    Frost

  • Tuesday

    Tuesday: Widespread frost before 9am.  Otherwise, sunny, with a high near 52. West wind 5 to 7 mph becoming calm. Winds could gust as high as 16 mph.

    High: 52 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. Southwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 46. West wind 6 to 14 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 66. West wind 6 to 11 mph becoming light and variable  in the morning. Winds could gust as high as 17 mph.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43. Light and variable wind becoming northwest around 6 mph in the evening.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 62. Southwest wind 6 to 8 mph becoming southeast in the morning. Winds could gust as high as 22 mph.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread frost. Otherwise, mostly clear, with a low around 30. West wind around 7 mph.
Tuesday
Widespread frost before 9am. Otherwise, sunny, with a high near 52. West wind 5 to 7 mph becoming calm. Winds could gust as high as 16 mph.
Tuesday Night
Mostly clear, with a low around 39. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 63. Southwest wind 7 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Clear, with a low around 46. West wind 6 to 14 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 66. West wind 6 to 11 mph becoming light and variable in the morning. Winds could gust as high as 17 mph.
Thursday Night
Mostly clear, with a low around 43. Light and variable wind becoming northwest around 6 mph in the evening.
Friday
Mostly sunny, with a high near 62. Southwest wind 6 to 8 mph becoming southeast in the morning. Winds could gust as high as 22 mph.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 49.
Sunday
A slight chance of showers. Mostly sunny, with a high near 57.
Sunday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 33.
Columbus Day
A slight chance of rain and snow showers. Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mount Rushmore SD
 43.87°N 103.52°W (Elev. 6148 ft)
7:32 pm MDT Oct 6, 2025
10pm MDT Oct 6, 2025-6pm MDT Oct 13, 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