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.

Overcast

-9°F

-23°C

Humidity 82%
Wind Speed S 3 mph
Barometer 30.17 in (1033.9 mb)
Dewpoint -13°F (-25°C)
Visibility 10.00 mi
Last update 23 Jan 5:53 am MST
Extended Forecast for

4 Miles SW Mount Rushmore SD

  • Today

    Today: Snow likely, mainly between 11am and 2pm.  Cloudy and cold, with a high near -4. Wind chill values as low as -25. East wind around 6 mph becoming south in the morning. Winds could gust as high as 17 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: -4 °F

    Snow Likely

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a steady temperature around -9. Wind chill values as low as -23. Southwest wind around 6 mph becoming west after midnight. Winds could gust as high as 17 mph.

    Low: -9 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Sunny, with a high near 16. Wind chill values as low as -22. West wind around 6 mph, with gusts as high as 20 mph.

    High: 16 °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. West wind around 6 mph, with gusts as high as 17 mph.

    Low: -5 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A 30 percent chance of snow, mainly before 11am.  Mostly sunny, with a high near 6. Northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.

    High: 6 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a temperature falling to near -4 by 8pm, then rising to around 12 during the remainder of the night. West wind 6 to 15 mph, with gusts as high as 32 mph.

    Low: -4 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34. West wind 9 to 15 mph, with gusts as high as 33 mph.

    High: 34 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16. West wind around 9 mph, with gusts as high as 22 mph.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

Detailed Forecast

Today
Snow likely, mainly between 11am and 2pm. Cloudy and cold, with a high near -4. Wind chill values as low as -25. East wind around 6 mph becoming south in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Cloudy during the early evening, then gradual clearing, with a steady temperature around -9. Wind chill values as low as -23. Southwest wind around 6 mph becoming west after midnight. Winds could gust as high as 17 mph.
Saturday
Sunny, with a high near 16. Wind chill values as low as -22. West wind around 6 mph, with gusts as high as 20 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. West wind around 6 mph, with gusts as high as 17 mph.
Sunday
A 30 percent chance of snow, mainly before 11am. Mostly sunny, with a high near 6. Northwest wind 3 to 6 mph. Winds could gust as high as 18 mph.
Sunday Night
Mostly clear, with a temperature falling to near -4 by 8pm, then rising to around 12 during the remainder of the night. West wind 6 to 15 mph, with gusts as high as 32 mph.
Monday
Sunny, with a high near 34. West wind 9 to 15 mph, with gusts as high as 33 mph.
Monday Night
Partly cloudy, with a low around 16. West wind around 9 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 29.
Tuesday Night
A slight chance of snow. Partly cloudy, with a low around 12.
Wednesday
Mostly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
Partly sunny, with a high near 29.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
5:41 am MST Jan 23, 2026
6am MST Jan 23, 2026-6pm MST Jan 29, 2026
 
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