Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

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

Overcast

59°F

15°C

Humidity 80%
Wind Speed SSW 13 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 11 Dec 12:53 AM PST
Extended Forecast for

5 Miles SE Troutdale OR

  • Overnight

    Overnight: Showers.  Low around 52. Breezy, with a southwest wind around 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%.

    Low: 52 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers, mainly before 2pm.  High near 56. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%.

    High: 56 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before 9pm.  Mostly cloudy, with a low around 49. South wind around 5 mph becoming light and variable  after midnight.

    Low: 49 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Light east southeast wind.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Slight Chance
    Rain then
    Rain Likely

  • Sunday

    Sunday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain, mainly after 4am.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Rain

Detailed Forecast

Overnight
Showers. Low around 52. Breezy, with a southwest wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Thursday
Showers, mainly before 2pm. High near 56. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 49. South wind around 5 mph becoming light and variable after midnight.
Friday
Partly sunny, with a high near 56. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 44. Light east southeast wind.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 53.
Sunday Night
Rain, mainly after 4am. Mostly cloudy, with a low around 49.
Monday
Rain. Cloudy, with a high near 56.
Monday Night
Rain. Cloudy, with a low around 45. Breezy.
Tuesday
Rain. Cloudy, with a high near 50. Breezy.
Tuesday Night
Rain. Cloudy, with a low around 42. Breezy.
Wednesday
Rain. Cloudy, with a high near 48. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Troutdale OR
 45.49°N 122.32°W (Elev. 600 ft)
12:55 am PST Dec 11, 2025
1am 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