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

NCSB (NCSW1)

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

NA

34°F

1°C

Humidity 100%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 08 Dec 09:06 PM PST
Extended Forecast for

4 Miles W Winthrop WA

  • Tonight

    Tonight: Rain before 3am, then a chance of rain and snow.  Low around 30. West wind around 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain then
    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of rain between 1pm and 4pm, then rain likely, possibly mixed with snow.  Increasing clouds, with a high near 40. West wind 5 to 10 mph becoming light and variable  in the afternoon.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Partly Sunny
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow.  Steady temperature around 34. Calm wind.  Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 34 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 42. West wind 3 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 42 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely.  Mostly cloudy, with a low around 33. West wind around 6 mph.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 40. Chance of precipitation is 60%.

    High: 40 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow, mainly before 4am.  Mostly cloudy, with a low around 31. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 1pm, then a chance of rain.  Mostly cloudy, with a high near 41. Chance of precipitation is 30%.

    High: 41 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Tonight
Rain before 3am, then a chance of rain and snow. Low around 30. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday
A slight chance of rain between 1pm and 4pm, then rain likely, possibly mixed with snow. Increasing clouds, with a high near 40. West wind 5 to 10 mph becoming light and variable in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain, possibly mixed with snow. Steady temperature around 34. Calm wind. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Wednesday
Rain. High near 42. West wind 3 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 33. West wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 40. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow, mainly before 4am. Mostly cloudy, with a low around 31. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 33.
Saturday
A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 41.
Saturday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 50%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Monday
Rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Winthrop WA
 48.47°N 120.25°W (Elev. 2743 ft)
8:22 pm PST Dec 8, 2025
9pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database