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

Portland, Portland International Airport (KPDX)

Lat: 45.59578°NLon: 122.60917°WElev: 20.0ft.

Overcast

57°F

14°C

Humidity 82%
Wind Speed SSW 13 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 11 Dec 09:15 AM PST
Extended Forecast for

Portland International Airport OR

  • Today

    Today: Showers likely, mainly before noon.  Mostly cloudy, with a high near 60. South southwest wind 6 to 10 mph.  Chance of precipitation is 70%.

    High: 60 °F

    Showers
    Likely

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm.  Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 1pm.  Otherwise, mostly cloudy, with a high near 58. Calm wind.

    High: 58 °F

    Patchy Fog

  • Friday Night

    Friday Night: Patchy fog.  Otherwise, mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Saturday

    Saturday: Partly sunny, with a high near 57. Calm wind.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Chance Rain
    then Rain
    Likely

  • Sunday

    Sunday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: Rain.  Cloudy, with a high near 58.

    High: 58 °F

    Rain

Detailed Forecast

Today
Showers likely, mainly before noon. Mostly cloudy, with a high near 60. South southwest wind 6 to 10 mph. Chance of precipitation is 70%.
Tonight
A 20 percent chance of showers before 9pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 50. Calm wind.
Friday
Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 58. Calm wind.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 46. Calm wind.
Saturday
Partly sunny, with a high near 57. Calm wind.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 49.
Monday
Rain. Cloudy, with a high near 58.
Monday Night
Rain. Cloudy, with a low around 47.
Tuesday
Rain. Cloudy, with a high near 54.
Tuesday Night
Rain. Cloudy, with a low around 44.
Wednesday
Rain. Cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Portland International Airport OR
 45.58°N 122.59°W (Elev. 200 ft)
8:41 am PST Dec 11, 2025
9am PST Dec 11, 2025-6pm PST Dec 17, 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