Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

29°F

-2°C

Humidity 72%
Wind Speed E 6 mph
Barometer 30.27 in (1028.5 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 30 Jan 9:53 am MST
Extended Forecast for

4 Miles SW Mount Rushmore SD

  • Today

    Today: A 30 percent chance of snow.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a steady temperature around 21. Wind chill values as low as 12. North wind around 6 mph becoming south in the afternoon. Winds could gust as high as 17 mph.

    High: 21 °F

    Chance Snow
    and Patchy
    Fog

  • Tonight

    Tonight: Mostly cloudy, with a temperature falling to near 16 by 11pm, then rising to around 29 during the remainder of the night. Wind chill values as low as 5. West wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow before 11am.  Cloudy through mid morning, then gradual clearing, with a high near 41. Northwest wind 10 to 14 mph, with gusts as high as 36 mph.

    High: 41 °F

    Chance Snow
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. Wind chill values as low as 20. Northwest wind 10 to 14 mph, with gusts as high as 32 mph.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46. Northwest wind 5 to 9 mph becoming light west  in the afternoon. Winds could gust as high as 21 mph.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a steady temperature around 33. West wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44. Northwest wind around 10 mph, with gusts as high as 28 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. Northwest wind 10 to 13 mph, with gusts as high as 30 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 11am.  Mostly sunny, with a high near 36.

    High: 36 °F

    Slight Chance
    Snow

Detailed Forecast

Today
A 30 percent chance of snow. Patchy fog before 11am. Otherwise, mostly cloudy, with a steady temperature around 21. Wind chill values as low as 12. North wind around 6 mph becoming south in the afternoon. Winds could gust as high as 17 mph.
Tonight
Mostly cloudy, with a temperature falling to near 16 by 11pm, then rising to around 29 during the remainder of the night. Wind chill values as low as 5. West wind 6 to 10 mph, with gusts as high as 23 mph.
Saturday
A 30 percent chance of snow before 11am. Cloudy through mid morning, then gradual clearing, with a high near 41. Northwest wind 10 to 14 mph, with gusts as high as 36 mph.
Saturday Night
Partly cloudy, with a low around 28. Wind chill values as low as 20. Northwest wind 10 to 14 mph, with gusts as high as 32 mph.
Sunday
Mostly sunny, with a high near 46. Northwest wind 5 to 9 mph becoming light west in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly cloudy, with a steady temperature around 33. West wind 5 to 9 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 44. Northwest wind around 10 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 27. Northwest wind 10 to 13 mph, with gusts as high as 30 mph.
Tuesday
A slight chance of snow after 11am. Mostly sunny, with a high near 36.
Tuesday Night
A slight chance of snow after 11pm. Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
10:32 am MST Jan 30, 2026
10am MST Jan 30, 2026-6pm MST Feb 5, 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