Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

A Few Clouds

35°F

2°C

Humidity 54%
Wind Speed W 13 G 26 mph
Barometer 30.00 in (1018.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 7 Dec 11:53 am MST
Extended Forecast for

4 Miles WSW Mount Rushmore SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a temperature falling to around 26 by 5pm. Wind chill values as low as 16. Northwest wind 11 to 13 mph, with gusts as high as 29 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 26. Wind chill values as low as 13. West wind 13 to 16 mph, with gusts as high as 24 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 37. Wind chill values as low as 15. West wind 10 to 15 mph, with gusts as high as 28 mph.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature falling to near 28 by 10pm, then rising to around 35 during the remainder of the night. Wind chill values as low as 16. Breezy, with a west wind 11 to 16 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 36 mph.

    Low: 28 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: A chance of rain and snow between 11am and 1pm, then a chance of snow after 1pm.  Partly sunny, with a temperature rising to near 42 by noon, then falling to around 33 during the remainder of the day. Breezy, with a west wind 20 to 25 mph, with gusts as high as 41 mph.  Chance of precipitation is 30%.

    High: 42 °F

    Chance
    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 24. Blustery, with a northwest wind 21 to 26 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 40 mph.

    Low: 24 °F

    Chance Snow
    and Blustery

  • Wednesday

    Wednesday: Snow likely, mainly after 11am.  Mostly cloudy, with a high near 33. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    High: 33 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Snow likely.  Mostly cloudy, with a low around 19. Northwest wind 14 to 16 mph, with gusts as high as 25 mph.

    Low: 19 °F

    Snow Likely

  • Thursday

    Thursday: A chance of snow.  Partly sunny, with a high near 24.

    High: 24 °F

    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a temperature falling to around 26 by 5pm. Wind chill values as low as 16. Northwest wind 11 to 13 mph, with gusts as high as 29 mph.
Tonight
Partly cloudy, with a steady temperature around 26. Wind chill values as low as 13. West wind 13 to 16 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 37. Wind chill values as low as 15. West wind 10 to 15 mph, with gusts as high as 28 mph.
Monday Night
Mostly cloudy, with a temperature falling to near 28 by 10pm, then rising to around 35 during the remainder of the night. Wind chill values as low as 16. Breezy, with a west wind 11 to 16 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 36 mph.
Tuesday
A chance of rain and snow between 11am and 1pm, then a chance of snow after 1pm. Partly sunny, with a temperature rising to near 42 by noon, then falling to around 33 during the remainder of the day. Breezy, with a west wind 20 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 24. Blustery, with a northwest wind 21 to 26 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 40 mph.
Wednesday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 33. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 19. Northwest wind 14 to 16 mph, with gusts as high as 25 mph.
Thursday
A chance of snow. Partly sunny, with a high near 24.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 3.
Friday
A slight chance of snow. Partly sunny, with a high near 14.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 5.
Saturday
Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mount Rushmore SD
 43.87°N 103.52°W (Elev. 6148 ft)
9:17 am MST Dec 7, 2025
12pm MST Dec 7, 2025-6pm MST Dec 13, 2025
 
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Additional Resources

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