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

36°F

2°C

Humidity 40%
Wind Speed Calm
Barometer 30.17 in (1021.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 12 Jan 6:53 am MST
Extended Forecast for

4 Miles WSW Mount Rushmore SD

  • Today

    Today: Mostly sunny, with a high near 51. West wind 9 to 11 mph, with gusts as high as 31 mph.

    High: 51 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of snow after 5am.  Partly cloudy, with a steady temperature around 41. West wind 14 to 16 mph, with gusts as high as 34 mph.

    Low: 41 °F

    Partly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 9am, then a chance of rain between 9am and 3pm, then a chance of rain and snow after 3pm.  Partly sunny, with a high near 44. Northwest wind 15 to 17 mph, with gusts as high as 39 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 44 °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 17. Northwest wind 15 to 18 mph, with gusts as high as 40 mph.

    Low: 27 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a temperature rising to around 40 by 5am. West wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 43 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 41. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 47 mph.

    High: 41 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 55 mph.

    Low: 18 °F

    Partly Cloudy
    and Blustery

  • Friday

    Friday: Mostly sunny, with a high near 24. Blustery.

    High: 24 °F

    Mostly Sunny
    and Blustery

Detailed Forecast

Today
Mostly sunny, with a high near 51. West wind 9 to 11 mph, with gusts as high as 31 mph.
Tonight
A 30 percent chance of snow after 5am. Partly cloudy, with a steady temperature around 41. West wind 14 to 16 mph, with gusts as high as 34 mph.
Tuesday
A chance of rain and snow before 9am, then a chance of rain between 9am and 3pm, then a chance of rain and snow after 3pm. Partly sunny, with a high near 44. Northwest wind 15 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. Wind chill values as low as 17. Northwest wind 15 to 18 mph, with gusts as high as 40 mph.
Wednesday
Mostly sunny, with a high near 40. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a temperature rising to around 40 by 5am. West wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 43 mph.
Thursday
Sunny, with a high near 41. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 47 mph.
Thursday Night
Partly cloudy, with a low around 18. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 55 mph.
Friday
Mostly sunny, with a high near 24. Blustery.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 33.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
7:06 am MST Jan 12, 2026
7am MST Jan 12, 2026-6pm MST Jan 18, 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