Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

-9°F

-23°C

Humidity 78%
Wind Speed W 8 mph
Barometer 30.08 in (1031.8 mb)
Dewpoint -14°F (-26°C)
Visibility 10.00 mi
Wind Chill-25°F (-32°C)
Last update 23 Jan 9:53 pm MST
Extended Forecast for

4 Miles WSW Mount Rushmore SD

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a temperature rising to around -7 by 3am. Wind chill values as low as -26. West wind around 6 mph, with gusts as high as 16 mph.

    Low: -12 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 15. Wind chill values as low as -18. West wind around 6 mph, with gusts as high as 21 mph.

    High: 15 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after 11pm.  Partly cloudy, with a low around -5. Wind chill values as low as -14. Northwest wind around 7 mph, with gusts as high as 16 mph.

    Low: -5 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A 30 percent chance of snow, mainly before 11am.  Mostly sunny, with a high near 5. Wind chill values as low as -16. Northwest wind around 6 mph, with gusts as high as 20 mph.

    High: 5 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a temperature falling to near -7 by 9pm, then rising to around 9 during the remainder of the night. West wind 6 to 13 mph, with gusts as high as 29 mph.

    Low: -7 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 33. West wind 11 to 14 mph, with gusts as high as 33 mph.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17. West wind around 10 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. Northwest wind 7 to 9 mph, with gusts as high as 24 mph.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a temperature rising to around -7 by 3am. Wind chill values as low as -26. West wind around 6 mph, with gusts as high as 16 mph.
Saturday
Sunny, with a high near 15. Wind chill values as low as -18. West wind around 6 mph, with gusts as high as 21 mph.
Saturday Night
A 20 percent chance of snow after 11pm. Partly cloudy, with a low around -5. Wind chill values as low as -14. Northwest wind around 7 mph, with gusts as high as 16 mph.
Sunday
A 30 percent chance of snow, mainly before 11am. Mostly sunny, with a high near 5. Wind chill values as low as -16. Northwest wind around 6 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a temperature falling to near -7 by 9pm, then rising to around 9 during the remainder of the night. West wind 6 to 13 mph, with gusts as high as 29 mph.
Monday
Sunny, with a high near 33. West wind 11 to 14 mph, with gusts as high as 33 mph.
Monday Night
Partly cloudy, with a low around 17. West wind around 10 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 32. Northwest wind 7 to 9 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
A slight chance of snow before 11am. Mostly sunny, with a high near 36.
Wednesday Night
Partly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 11.
Friday
Mostly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
8:36 pm MST Jan 23, 2026
10pm MST Jan 23, 2026-6pm MST Jan 30, 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