Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Mostly Cloudy

33°F

1°C

Humidity 64%
Wind Speed NW 17 G 26 mph
Barometer 30.09 in (1021.2 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 29 Jan 1:53 pm MST
Extended Forecast for

4 Miles WSW Mount Rushmore SD

  • This Afternoon

    This Afternoon: A 50 percent chance of snow.  Mostly cloudy, with a high near 32. Wind chill values as low as 19. Northwest wind 7 to 9 mph, with gusts as high as 28 mph.  Total daytime snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow

  • Tonight

    Tonight: A 20 percent chance of snow.  Mostly cloudy, with a low around 17. Northwest wind 5 to 7 mph.

    Low: 17 °F

    Slight Chance
    Snow

  • Friday

    Friday: A 40 percent chance of snow.  Mostly cloudy, with a temperature rising to near 24 by noon, then falling to around 18 during the remainder of the day. Wind chill values as low as 11. Northwest wind around 6 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.  New snow accumulation of less than one inch possible.

    High: 24 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow after 11pm.  Increasing clouds, with a temperature rising to around 28 by 5am. Wind chill values as low as 6. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 16 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 40 percent chance of snow, mainly before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind 9 to 11 mph, with gusts as high as 32 mph.  Little or no snow accumulation expected.

    High: 41 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. Northwest wind around 13 mph, with gusts as high as 31 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 42. Northwest wind 5 to 9 mph becoming calm  in the afternoon. Winds could gust as high as 23 mph.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26. West wind 3 to 7 mph. Winds could gust as high as 16 mph.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of snow. Mostly cloudy, with a high near 32. Wind chill values as low as 19. Northwest wind 7 to 9 mph, with gusts as high as 28 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 20 percent chance of snow. Mostly cloudy, with a low around 17. Northwest wind 5 to 7 mph.
Friday
A 40 percent chance of snow. Mostly cloudy, with a temperature rising to near 24 by noon, then falling to around 18 during the remainder of the day. Wind chill values as low as 11. Northwest wind around 6 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph. New snow accumulation of less than one inch possible.
Friday Night
A 20 percent chance of snow after 11pm. Increasing clouds, with a temperature rising to around 28 by 5am. Wind chill values as low as 6. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.
Saturday
A 40 percent chance of snow, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind 9 to 11 mph, with gusts as high as 32 mph. Little or no snow accumulation expected.
Saturday Night
Mostly clear, with a low around 28. Northwest wind around 13 mph, with gusts as high as 31 mph.
Sunday
Mostly sunny, with a high near 42. Northwest wind 5 to 9 mph becoming calm in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 26. West wind 3 to 7 mph. Winds could gust as high as 16 mph.
Monday
Partly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
A slight chance of snow. Mostly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
1:02 pm MST Jan 29, 2026
2pm MST Jan 29, 2026-6pm MST Feb 4, 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