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 >

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

32°F

0°C

Humidity 98%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 09 Dec 11:06 PM PST
Extended Forecast for

Winthrop WA

  • Tonight

    Tonight: Rain, possibly mixed with snow, becoming all rain after 1am.  Steady temperature around 35. Calm wind.  Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 35 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 47. Light northeast wind becoming north 5 to 10 mph in the morning.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 35. North wind 6 to 11 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before 10am.  Partly sunny, with a high near 44. West wind 6 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain before 10pm, then a chance of rain and snow.  Mostly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A 40 percent chance of rain.  Partly sunny, with a high near 44.

    High: 44 °F

    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain after 10am.  Partly sunny, with a high near 41.

    High: 41 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

Detailed Forecast

Tonight
Rain, possibly mixed with snow, becoming all rain after 1am. Steady temperature around 35. Calm wind. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Rain. High near 47. Light northeast wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 35. North wind 6 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely, mainly before 10am. Partly sunny, with a high near 44. West wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 44.
Friday Night
A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 31.
Saturday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 41.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 30.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 42.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 30.
Monday
Rain. High near 40. Chance of precipitation is 80%.
Monday Night
Rain. Low around 29. Chance of precipitation is 80%.
Tuesday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop WA
 48.48°N 120.19°W (Elev. 1801 ft)
5:48 pm PST Dec 9, 2025
11pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

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