Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

31°F

-1°C

Humidity 69%
Wind Speed SW 9 mph
Barometer 29.82 in (1010.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 8 Dec 11:53 pm MST
Extended Forecast for

5 Miles NW Custer SD

  • Overnight

    Overnight: Partly cloudy, with a low around 26. Wind chill values as low as 16. West wind 7 to 15 mph, with gusts as high as 30 mph.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow before 11am, then a chance of rain between 11am and 3pm, then a chance of snow after 3pm.  Mostly sunny, with a high near 44. Wind chill values as low as 20. Breezy, with a west wind 17 to 25 mph, with gusts as high as 43 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 44 °F

    Chance
    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. Wind chill values as low as 11. Blustery, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 45 mph.

    Low: 20 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Snow likely before 4pm, then rain and snow likely.  Mostly cloudy, with a high near 38. Wind chill values as low as 14. West wind 6 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Snow likely, possibly mixed with rain.  Mostly cloudy, with a low around 28. West wind around 11 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow before 7am, then a chance of snow.  Mostly cloudy, with a high near 39. West wind around 9 mph, with gusts as high as 24 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely.  Mostly cloudy, with a low around 10. Northwest wind 6 to 9 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    Low: 10 °F

    Snow Likely

  • Friday

    Friday: A chance of snow.  Mostly cloudy, with a high near 21. West wind around 5 mph becoming light and variable  in the afternoon.

    High: 21 °F

    Chance Snow

  • Friday Night

    Friday Night: A chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 10.

    Low: 10 °F

    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 26. Wind chill values as low as 16. West wind 7 to 15 mph, with gusts as high as 30 mph.
Tuesday
A chance of rain and snow before 11am, then a chance of rain between 11am and 3pm, then a chance of snow after 3pm. Mostly sunny, with a high near 44. Wind chill values as low as 20. Breezy, with a west wind 17 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday Night
Partly cloudy, with a low around 20. Wind chill values as low as 11. Blustery, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 45 mph.
Wednesday
Snow likely before 4pm, then rain and snow likely. Mostly cloudy, with a high near 38. Wind chill values as low as 14. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow likely, possibly mixed with rain. Mostly cloudy, with a low around 28. West wind around 11 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of rain and snow before 7am, then a chance of snow. Mostly cloudy, with a high near 39. West wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely. Mostly cloudy, with a low around 10. Northwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Friday
A chance of snow. Mostly cloudy, with a high near 21. West wind around 5 mph becoming light and variable in the afternoon.
Friday Night
A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Custer SD
 43.82°N 103.67°W (Elev. 6001 ft)
12:02 am MST Dec 9, 2025
12am MST Dec 9, 2025-6pm MST Dec 15, 2025
 
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Additional Resources

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