Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

NCSB (NCSW1)

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

NA

43°F

6°C

Humidity 66%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 11 Dec 09:06 AM PST
Extended Forecast for

Winthrop WA

Flood Advisory December 11, 10:15am until December 11, 11:45am
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory December 11, 10:15am until December 11, 11:45am

    NOW until 11:45am Thu

    Flood Advisory

  • Today

    High: 44 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: A chance of rain before 1am, then a chance of rain after 4am.  Mostly cloudy, with a low around 31. Light northwest wind.  Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly after 10am.  Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Chance Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 33. Light northwest wind.

    Low: 33 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 43. Calm wind.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 50 percent chance of rain.  Partly sunny, with a high near 43.

    High: 43 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely

Detailed Forecast

Today
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 44. Northeast wind around 7 mph becoming northwest in the afternoon.
Tonight
A chance of rain before 1am, then a chance of rain after 4am. Mostly cloudy, with a low around 31. Light northwest wind. Chance of precipitation is 30%.
Friday
A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 44. Calm wind.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 33. Light northwest wind.
Saturday
Partly sunny, with a high near 43. Calm wind.
Saturday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 31.
Sunday
A 50 percent chance of rain. Partly sunny, with a high near 43.
Sunday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Monday
Rain. High near 42. Chance of precipitation is 90%.
Monday Night
Rain, mainly before 4am. Low around 30. Chance of precipitation is 90%.
Tuesday
Rain. High near 40. Chance of precipitation is 80%.
Tuesday Night
Rain and snow. Low around 25. Chance of precipitation is 80%.
Wednesday
Rain and snow. High near 36. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop WA
 48.48°N 120.19°W (Elev. 1801 ft)
8:52 am PST Dec 11, 2025
10am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

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