National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

25°F

-4°C

Humidity 66%
Wind Speed W 8 mph
Barometer 30.16 in (1024.3 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 27 Jan 11:53 pm MST
Extended Forecast for

5 Miles WSW Mount Rushmore SD

  • Overnight

    Overnight: Mostly clear, with a low around 20. Wind chill values as low as 13. West wind around 11 mph, with gusts as high as 24 mph.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 38. Wind chill values as low as 14. West wind 5 to 9 mph becoming light northwest in the afternoon. Winds could gust as high as 16 mph.

    High: 38 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow after 11pm. Cloudy, with a low around 20. Wind chill values as low as 12. Northwest wind 5 to 9 mph, with gusts as high as 17 mph.

    Low: 20 °F

    Chance Snow

  • Thursday

    Thursday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 31. Wind chill values as low as 12. Northwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 15. Northwest wind around 6 mph, with gusts as high as 15 mph. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 23. Northwest wind around 6 mph becoming southeast in the afternoon. Winds could gust as high as 16 mph. New snow accumulation of less than a half inch possible.

    High: 23 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 11. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 11 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A chance of snow, mainly before 11am. Partly sunny, with a high near 36. West wind 11 to 13 mph, with gusts as high as 30 mph.

    High: 36 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 20. Wind chill values as low as 13. West wind around 11 mph, with gusts as high as 24 mph.
Wednesday
Increasing clouds, with a high near 38. Wind chill values as low as 14. West wind 5 to 9 mph becoming light northwest in the afternoon. Winds could gust as high as 16 mph.
Wednesday Night
A 30 percent chance of snow after 11pm. Cloudy, with a low around 20. Wind chill values as low as 12. Northwest wind 5 to 9 mph, with gusts as high as 17 mph.
Thursday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 31. Wind chill values as low as 12. Northwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 15. Northwest wind around 6 mph, with gusts as high as 15 mph. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 23. Northwest wind around 6 mph becoming southeast in the afternoon. Winds could gust as high as 16 mph. New snow accumulation of less than a half inch possible.
Friday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 11. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday
A chance of snow, mainly before 11am. Partly sunny, with a high near 36. West wind 11 to 13 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
A slight chance of snow. Partly sunny, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mount Rushmore SD
 43.85°N 103.55°W (Elev. 6490 ft)
Last Update:
10:41 pm MST Jan 27, 2026
Forecast Valid:
12am MST Jan 28, 2026-6pm MST Feb 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation