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.

Partly Cloudy

29°F

-2°C

Humidity 66%
Wind Speed NW 10 G 23 mph
Barometer 29.98 in (1015.8 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 9 Dec 10:53 pm MST
Extended Forecast for

5 Miles N Custer SD

  • Tonight

    Tonight: Increasing clouds, with a steady temperature around 24. Wind chill values as low as 9. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 36 mph.

    Low: 24 °F

    Increasing
    Clouds and
    Blustery

  • Wednesday

    Wednesday: A chance of snow after 11am, mixing with rain after 4pm.  Mostly cloudy, with a high near 40. Wind chill values as low as 10. West wind 5 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 40 °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 17 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 47. West wind 11 to 14 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%.

    High: 47 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain and snow likely, becoming all snow after 7pm.  Mostly cloudy, with a low around 18. Northwest wind 8 to 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 24. Southwest wind 5 to 7 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 one inch possible.

    High: 24 °F

    Snow Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 9. South wind 6 to 8 mph becoming west after midnight. Winds could gust as high as 15 mph.

    Low: 9 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow before 11am.  Partly sunny, with a high near 22. Northwest wind 5 to 7 mph, with gusts as high as 18 mph.

    High: 22 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

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

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a steady temperature around 24. Wind chill values as low as 9. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 36 mph.
Wednesday
A chance of snow after 11am, mixing with rain after 4pm. Mostly cloudy, with a high near 40. Wind chill values as low as 10. West wind 5 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
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 17 mph, with gusts as high as 29 mph.
Thursday
Rain likely, mainly after 5pm. Mostly sunny, with a high near 47. West wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Thursday Night
Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 18. Northwest wind 8 to 15 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 24. Southwest wind 5 to 7 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 one inch possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 9. South wind 6 to 8 mph becoming west after midnight. Winds could gust as high as 15 mph.
Saturday
A chance of snow before 11am. Partly sunny, with a high near 22. Northwest wind 5 to 7 mph, with gusts as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Custer SD
 43.84°N 103.61°W (Elev. 6276 ft)
9:26 pm MST Dec 9, 2025
11pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

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