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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Airport (KPDX)

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

Fog

40°F

4°C

Humidity 100%
Wind Speed ENE 3 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 40°F (4°C)
Visibility 8.00 mi
Last update 21 Nov 07:53 AM PST
Extended Forecast for

Portland OR

Dense Fog Advisory until November 21, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until November 21, 10:00am

    NOW until 10:00am Fri

    Dense Fog Advisory

  • Today

    High: 52 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Patchy fog between 1am and 2am. Otherwise, mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Rain likely after 4am. Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 41. Calm wind. Chance of precipitation is 60%.

    Low: 41 °F

    Patchy Fog
    then Rain
    Likely

  • Sunday

    Sunday: Rain. High near 51. South southwest wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain

  • Sunday Night

    Sunday Night: Showers. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 10am. Partly sunny, with a high near 50. Chance of precipitation is 60%.

    High: 50 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers after 4am. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Patchy dense fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 52. Calm wind.
Tonight
Patchy fog between 1am and 2am. Otherwise, mostly cloudy, with a low around 39. Calm wind.
Saturday
Partly sunny, with a high near 50. Calm wind.
Saturday Night
Rain likely after 4am. Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 41. Calm wind. Chance of precipitation is 60%.
Sunday
Rain. High near 51. South southwest wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 40. Chance of precipitation is 80%.
Monday
Showers likely, mainly before 10am. Partly sunny, with a high near 50. Chance of precipitation is 60%.
Monday Night
A slight chance of showers after 4am. Mostly cloudy, with a low around 37.
Tuesday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 48.
Tuesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 42.
Wednesday
Rain likely. Cloudy, with a high near 51.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 47.
Thanksgiving Day
Rain likely. Mostly cloudy, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.53°N 122.67°W (Elev. 200 ft)
Last Update:
7:45 am PST Nov 21, 2025
Forecast Valid:
8am PST Nov 21, 2025-6pm PST Nov 27, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation