Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

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

light rain,mist

57°F

14°C

Humidity 89%
Wind Speed SSW 17 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 54°F (12°C)
Visibility 5.00 mi
Last update 08 Dec 09:53 AM PST
Extended Forecast for

Portland OR

Flood Watch until December 12, 04:00am
Wind Advisory until December 9, 04:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch until December 12, 04:00am
    Wind Advisory until December 9, 04:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 57 °F

    Rain and
    Breezy

  • Tonight

    Tonight: Rain.  Low around 50. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 39 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 50 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: Rain.  High near 58. North wind around 8 mph becoming south southwest in the afternoon.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 53. South southwest wind 11 to 14 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 53 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 59. South southwest wind around 13 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 60. Chance of precipitation is 70%.

    High: 60 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

Detailed Forecast

Today
Rain. High near 57. Breezy, with a south southwest wind 15 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain. Low around 50. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
Rain. High near 58. North wind around 8 mph becoming south southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday Night
Rain. Low around 53. South southwest wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday
Rain. High near 59. South southwest wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain. Low around 54. Chance of precipitation is 90%.
Thursday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
Thursday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 50.
Friday
Mostly cloudy, with a high near 58.
Friday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 47.
Saturday
A chance of rain. Mostly cloudy, with a high near 55.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 47.
Sunday
A chance of rain. Mostly cloudy, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.53°N 122.67°W (Elev. 200 ft)
9:45 am PST Dec 8, 2025
10am PST Dec 8, 2025-6pm PST Dec 14, 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