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 82%
Wind Speed SW 17 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Dec 12:00 AM PST
Extended Forecast for

Happy Valley OR

  • Overnight

    Overnight: Showers.  Low around 53. Breezy, with a south southwest wind 13 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%.

    Low: 53 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers likely, mainly before noon.  Cloudy, with a high near 56. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 10pm.  Mostly cloudy, with a low around 49. South southeast wind around 6 mph.

    Low: 49 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 56. South southeast wind around 5 mph becoming light and variable  in the morning.

    High: 56 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Southeast wind 3 to 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Overnight
Showers. Low around 53. Breezy, with a south southwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Thursday
Showers likely, mainly before noon. Cloudy, with a high near 56. South southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of showers before 10pm. Mostly cloudy, with a low around 49. South southeast wind around 6 mph.
Friday
Partly sunny, with a high near 56. South southeast wind around 5 mph becoming light and variable in the morning.
Friday Night
Mostly cloudy, with a low around 44. Southeast wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 45.
Sunday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 53.
Sunday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 48.
Monday
Rain. Cloudy, with a high near 56.
Monday Night
Rain. Cloudy, with a low around 47. Breezy.
Tuesday
Rain. Cloudy, with a high near 52.
Tuesday Night
Rain. Cloudy, with a low around 44. Breezy.
Wednesday
Rain. Cloudy, with a high near 50. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Happy Valley OR
 45.44°N 122.52°W (Elev. 600 ft)
11:41 pm PST Dec 10, 2025
12am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database