National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Vigorous System Impacting the Northwest; Large System To Affect East

A potent storm system is delivering heavy rainfall, strong winds, rough surf and beach erosion along the Pacific Northwest coast with mountain snow inland. Expect a couple more systems to arrive late week into the weekend. Meanwhile, another developing large scale system will deliver a heavy rain and renewed flood threat to much of the East late Wednesday through Friday, which may impact travel. Read More >

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Airport (KPDX)

Lat: 45.59578°NLon: 122.60917°WElev: 20ft.

Overcast

50°F

10°C

Humidity 82%
Wind Speed E 6 MPH
Barometer 30.07 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 18 Dec 7:20 pm PST
Extended Forecast for

Portland OR

Flood Watch until December 19, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until December 19, 04:00pm

    NOW until
    4:00pm Wed

    Flood Watch

  • Tonight

    Tonight: Showers. Patchy fog after 4am. Low around 45. West southwest wind 7 to 10 mph becoming south southeast in the evening. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Showers and
    Patchy Fog

    Low: 45 °F

  • Wednesday

    Wednesday: A 40 percent chance of showers. Patchy fog before 10am. Otherwise, cloudy, with a high near 51. Southwest wind around 6 mph becoming light and variable in the afternoon.

    Chance
    Showers and
    Patchy Fog

    High: 51 °F

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of rain. Cloudy, with a low around 46. East southeast wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.

    Chance Rain

    Low: 46 °F

  • Thursday

    Thursday: Rain. High near 54. Breezy, with a south southwest wind 16 to 26 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Rain and
    Breezy

    High: 54 °F

  • Thursday
    Night

    Thursday Night: Showers. Low around 39. West northwest wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers

    Low: 39 °F

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 46.

    Chance
    Showers

    High: 46 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of rain. Cloudy, with a low around 38.

    Slight Chance
    Rain

    Low: 38 °F

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 46.

    Chance Rain

    High: 46 °F

Detailed Forecast

Tonight
Showers. Patchy fog after 4am. Low around 45. West southwest wind 7 to 10 mph becoming south southeast in the evening. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 40 percent chance of showers. Patchy fog before 10am. Otherwise, cloudy, with a high near 51. Southwest wind around 6 mph becoming light and variable in the afternoon.
Wednesday Night
A 50 percent chance of rain. Cloudy, with a low around 46. East southeast wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 54. Breezy, with a south southwest wind 16 to 26 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers. Low around 39. West northwest wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 46.
Friday Night
A 20 percent chance of rain. Cloudy, with a low around 38.
Saturday
A chance of rain. Mostly cloudy, with a high near 46.
Saturday Night
Rain likely. Cloudy, with a low around 41.
Sunday
Rain likely. Cloudy, with a high near 47.
Sunday Night
A chance of rain. Cloudy, with a low around 42.
Monday
Rain likely. Cloudy, with a high near 48.
Monday Night
A chance of rain. Cloudy, with a low around 40.
Christmas Day
A chance of rain. Cloudy, with a high near 47.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Portland OR
 45.53°N 122.67°W (Elev. 200 ft)
Last Update:
1:29 pm PST Dec 18, 2018
Forecast Valid:
7pm PST Dec 18, 2018-6pm PST Dec 25, 2018
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation