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

Portland, Portland-Troutdale Airport (KTTD)

Lat: 45.55111°NLon: 122.40889°WElev: 36.0ft.

Overcast

61°F

16°C

Humidity 77%
Wind Speed S 10 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Dec 03:55 AM PST
Extended Forecast for

3 Miles ENE Troutdale OR

Wind Advisory until December 10, 10:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 10, 10:00pm

    NOW until 10:00pm Wed

    Wind Advisory

  • Overnight

    Low: 55 °F

    Showers and
    Windy

  • Wednesday

    Wednesday: Showers, mainly before 2pm.  High near 60. Windy, with a southwest wind 18 to 22 mph, with gusts as high as 38 mph.  Chance of precipitation is 80%.

    High: 60 °F

    Showers and
    Windy

  • Wednesday Night

    Wednesday Night: Showers, mainly after 7pm.  Low around 53. Breezy, with a southwest wind around 18 mph, with gusts as high as 33 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers, mainly before 4pm.  High near 57. Breezy, with a west southwest wind 8 to 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers, mainly before 10pm.  Mostly cloudy, with a low around 51. Light southeast wind.

    Low: 51 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 4pm.  Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Showers. Steady temperature around 55. Windy, with a southwest wind around 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.
Wednesday
Showers, mainly before 2pm. High near 60. Windy, with a southwest wind 18 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.
Wednesday Night
Showers, mainly after 7pm. Low around 53. Breezy, with a southwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers, mainly before 4pm. High near 57. Breezy, with a west southwest wind 8 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 50 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 51. Light southeast wind.
Friday
A 20 percent chance of showers. Mostly cloudy, with a high near 57.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
A slight chance of showers after 4pm. Mostly sunny, with a high near 59.
Saturday Night
A slight chance of showers before 10pm, then rain likely, mainly after 4am. Mostly cloudy, with a low around 47.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 55.
Sunday Night
Rain likely. 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. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Troutdale OR
 45.57°N 122.34°W (Elev. 135 ft)
3:45 am PST Dec 10, 2025
4am PST Dec 10, 2025-6pm PST Dec 16, 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