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.

Mostly Cloudy

29°F

-2°C

Humidity 66%
Wind Speed NW 8 G 23 mph
Barometer 29.93 in (1014.6 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 9 Dec 8:53 pm MST
Extended Forecast for

2 Miles SSE Rochford SD

  • Tonight

    Tonight: A 30 percent chance of snow, mainly before 3am.  Mostly cloudy, with a low around 21. Wind chill values as low as 13. Northwest wind 6 to 11 mph, with gusts as high as 36 mph.

    Low: 21 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow likely between 11am and 4pm, then rain likely after 4pm.  Mostly cloudy, with a high near 40. Wind chill values as low as 13. Calm wind becoming west around 6 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Mostly cloudy, with a temperature falling to near 35 by 11pm, then rising to around 39 during the remainder of the night. West wind around 8 mph, with gusts as high as 28 mph.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly after 5pm.  Partly sunny, with a high near 47. West wind 6 to 8 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%.

    High: 47 °F

    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 3 to 8 mph. Winds could gust as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Friday

    Friday: Snow.  High near 26. Light and variable wind.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 26 °F

    Snow

  • Friday Night

    Friday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 10. Light and variable wind.

    Low: 10 °F

    Chance Snow

  • Saturday

    Saturday: A chance of snow, mainly before 11am.  Partly sunny, with a high near 24. Northwest wind around 5 mph becoming calm  in the afternoon. Winds could gust as high as 18 mph.

    High: 24 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of snow, mainly before 3am. Mostly cloudy, with a low around 21. Wind chill values as low as 13. Northwest wind 6 to 11 mph, with gusts as high as 36 mph.
Wednesday
Snow likely between 11am and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 40. Wind chill values as low as 13. Calm wind becoming west around 6 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a temperature falling to near 35 by 11pm, then rising to around 39 during the remainder of the night. West wind around 8 mph, with gusts as high as 28 mph.
Thursday
Rain likely, mainly after 5pm. Partly sunny, with a high near 47. West wind 6 to 8 mph, with gusts as high as 28 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 3 to 8 mph. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday
Snow. High near 26. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 10. Light and variable wind.
Saturday
A chance of snow, mainly before 11am. Partly sunny, with a high near 24. Northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 11.
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
A slight chance of snow. Mostly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Rochford SD
 44.1°N 103.75°W (Elev. 6109 ft)
9:26 pm MST Dec 9, 2025
9pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

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