Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

29°F

-2°C

Humidity 66%
Wind Speed NW 9 G 22 mph
Barometer 30.01 in (1016.8 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 9 Dec 11:53 pm MST
Extended Forecast for

5 Miles NW Custer SD

  • Overnight

    Overnight: Increasing clouds, with a low around 21. Wind chill values as low as 14. Northwest wind 10 to 14 mph, with gusts as high as 37 mph.

    Low: 21 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A chance of snow after 11am, mixing with rain after 3pm.  Mostly cloudy, with a high near 41. Wind chill values as low as 13. Southwest wind 5 to 8 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain, mainly before 11pm.  Partly cloudy, with a temperature falling to near 33 by 11pm, then rising to around 40 during the remainder of the night. West wind around 10 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly after 5pm.  Mostly sunny, with a high near 49. West wind around 11 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%.

    High: 49 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain and snow likely, becoming all snow after 8pm.  Mostly cloudy, with a low around 19. Northwest wind 6 to 10 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 26. Southwest wind around 6 mph becoming south in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Snow Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 10. Light and variable wind becoming northwest around 6 mph after midnight. Winds could gust as high as 15 mph.

    Low: 10 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow before 11am.  Partly sunny, with a high near 25. Northwest wind 3 to 6 mph. Winds could gust as high as 17 mph.

    High: 25 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Overnight
Increasing clouds, with a low around 21. Wind chill values as low as 14. Northwest wind 10 to 14 mph, with gusts as high as 37 mph.
Wednesday
A chance of snow after 11am, mixing with rain after 3pm. Mostly cloudy, with a high near 41. Wind chill values as low as 13. Southwest wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday Night
A 40 percent chance of rain, mainly before 11pm. Partly cloudy, with a temperature falling to near 33 by 11pm, then rising to around 40 during the remainder of the night. West wind around 10 mph, with gusts as high as 29 mph.
Thursday
Rain likely, mainly after 5pm. Mostly sunny, with a high near 49. West wind around 11 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Thursday Night
Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 19. Northwest wind 6 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow likely. Mostly cloudy, with a high near 26. Southwest wind around 6 mph becoming south in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 10. Light and variable wind becoming northwest around 6 mph after midnight. Winds could gust as high as 15 mph.
Saturday
A chance of snow before 11am. Partly sunny, with a high near 25. Northwest wind 3 to 6 mph. Winds could gust as high as 17 mph.
Saturday Night
Partly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Custer SD
 43.82°N 103.67°W (Elev. 6001 ft)
11:12 pm MST Dec 9, 2025
12am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

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