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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

49°F

9°C

Humidity 33%
Wind Speed W 13 G 25 mph
Barometer 30.11 in (1018.4 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 12 Jan 3:53 pm MST
Extended Forecast for

4 Miles SW Mount Rushmore SD

  • Tonight

    Tonight: Partly cloudy, with a low around 38. West wind 14 to 17 mph, with gusts as high as 37 mph.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow before 2pm, then a chance of rain between 2pm and 3pm, then a chance of rain and snow after 3pm. Partly sunny, with a temperature rising to near 42 by 9am, then falling to around 36 during the remainder of the day. Northwest wind 14 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 42 °F⇓

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. Wind chill values as low as 19. Northwest wind 13 to 17 mph, with gusts as high as 39 mph.

    Low: 27 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. Wind chill values as low as 18. Northwest wind 5 to 9 mph, with gusts as high as 23 mph.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a temperature falling to near 34 by midnight, then rising to around 38 during the remainder of the night. West wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 39 mph.

    Low: 34 °F⇑

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a temperature rising to near 40 by 11am, then falling to around 30 during the remainder of the day. Northwest wind 15 to 18 mph, with gusts as high as 43 mph.

    High: 40 °F⇓

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19. Blustery, with a northwest wind 22 to 28 mph, with gusts as high as 60 mph.

    Low: 19 °F

    Partly Cloudy
    and Blustery

  • Friday

    Friday: Mostly sunny, with a high near 24. Blustery, with a northwest wind 18 to 28 mph, with gusts as high as 60 mph.

    High: 24 °F

    Mostly Sunny
    and Blustery

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. West wind 14 to 17 mph, with gusts as high as 37 mph.
Tuesday
A chance of rain and snow before 2pm, then a chance of rain between 2pm and 3pm, then a chance of rain and snow after 3pm. Partly sunny, with a temperature rising to near 42 by 9am, then falling to around 36 during the remainder of the day. Northwest wind 14 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. Wind chill values as low as 19. Northwest wind 13 to 17 mph, with gusts as high as 39 mph.
Wednesday
Mostly sunny, with a high near 41. Wind chill values as low as 18. Northwest wind 5 to 9 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a temperature falling to near 34 by midnight, then rising to around 38 during the remainder of the night. West wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 39 mph.
Thursday
Sunny, with a temperature rising to near 40 by 11am, then falling to around 30 during the remainder of the day. Northwest wind 15 to 18 mph, with gusts as high as 43 mph.
Thursday Night
Partly cloudy, with a low around 19. Blustery, with a northwest wind 22 to 28 mph, with gusts as high as 60 mph.
Friday
Mostly sunny, with a high near 24. Blustery, with a northwest wind 18 to 28 mph, with gusts as high as 60 mph.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
Mostly clear, with a low around 19.
Sunday
Sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 22.
M.L.King Day
Sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
Last Update:
4:41 pm MST Jan 12, 2026
Forecast Valid:
4pm MST Jan 12, 2026-6pm MST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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