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

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

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

33°F

1°C

Humidity 45%
Wind Speed W 13 G 30 mph
Barometer 30.12 in (1022.7 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 27 Jan 12:53 pm MST
Extended Forecast for

5 Miles WSW Mount Rushmore SD

  • This Afternoon

    This Afternoon: Mostly cloudy, then gradually becoming sunny, with a high near 32. Wind chill values as low as 18. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 32 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 24. Wind chill values as low as 10. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.

    Low: 24 °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. 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.

    High: 23 °F

    Chance Snow

  • Friday Night

    Friday Night: A slight 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.

    High: 36 °F

    Chance Snow

Detailed Forecast

This Afternoon
Mostly cloudy, then gradually becoming sunny, with a high near 32. Wind chill values as low as 18. Northwest wind 7 to 11 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a steady temperature around 24. Wind chill values as low as 10. Northwest wind 10 to 13 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. 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.
Friday Night
A slight 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.
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.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mount Rushmore SD
 43.85°N 103.55°W (Elev. 6490 ft)
Last Update:
1:31 pm MST Jan 27, 2026
Forecast Valid:
1pm MST Jan 27, 2026-6pm MST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation