Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

36°F

2°C

Humidity 57%
Wind Speed W 8 mph
Barometer 30.11 in (1020.6 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 31 Jan 8:53 pm MST
Extended Forecast for

3 Miles SSE Custer County Airport SD

  • Tonight

    Tonight: Partly cloudy, with a low around 29. West wind 5 to 7 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51. West wind around 6 mph becoming calm  in the afternoon. Winds could gust as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32. Calm wind becoming northwest around 5 mph after midnight. Winds could gust as high as 15 mph.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48. Northwest wind 7 to 13 mph, with gusts as high as 29 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Northwest wind around 6 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after 11am.  Partly sunny, with a high near 43. Northwest wind 5 to 11 mph, with gusts as high as 26 mph.

    High: 43 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. Northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. West wind 5 to 8 mph, with gusts as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. West wind 5 to 7 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 51. West wind around 6 mph becoming calm in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 32. Calm wind becoming northwest around 5 mph after midnight. Winds could gust as high as 15 mph.
Monday
Mostly sunny, with a high near 48. Northwest wind 7 to 13 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 28. Northwest wind around 6 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of snow after 11am. Partly sunny, with a high near 43. Northwest wind 5 to 11 mph, with gusts as high as 26 mph.
Tuesday Night
Partly cloudy, with a low around 25. Northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.
Wednesday
Mostly sunny, with a high near 47. West wind 5 to 8 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 47.
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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)
8:27 pm MST Jan 31, 2026
9pm MST Jan 31, 2026-6pm MST Feb 7, 2026
 
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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