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.

light rain,mist

49°F

9°C

Humidity 100%
Wind Speed ENE 3 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 49°F (9°C)
Visibility 6.00 mi
Last update 09 Dec 08:53 PM PST
Extended Forecast for

3 Miles N Troutdale OR

Flood Watch December 9, 09:06pm until December 11, 04:00pm
Wind Advisory until December 10, 10:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 9, 09:06pm until December 11, 04:00pm
    Wind Advisory until December 10, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 55 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain.  High near 59. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 34 mph.  Chance of precipitation is 80%.

    High: 59 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain.  Low around 53. Breezy, with a south southwest wind around 15 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain.  High near 58. Southwest wind 9 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain, mainly before 4am.  Mostly cloudy, with a low around 52. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Chance Rain

  • Friday

    Friday: A slight chance of rain before 10am, then a slight chance of rain after 4pm.  Mostly cloudy, with a high near 58. Chance of precipitation is 20%.

    High: 58 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Tonight
Rain, mainly after 4am. Steady temperature around 55. Breezy, with a southwest wind around 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 59. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Wednesday Night
Rain. Low around 53. Breezy, with a south southwest wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 58. Southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 52. South southwest wind around 5 mph becoming calm in the evening.
Friday
A slight chance of rain before 10am, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 58. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 57.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 47.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 54.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46.
Monday
Rain. Cloudy, with a high near 57.
Monday Night
Rain. Cloudy, with a low around 47.
Tuesday
Rain. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Troutdale OR
 45.59°N 122.41°W (Elev. 98 ft)
8:41 pm PST Dec 9, 2025
9pm PST Dec 9, 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