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

Widespread Showers and Thunderstorms in Southern California and the Southern Plains into the Mississippi Valley

Isolated strong to severe thunderstorms and widespread heavy rainfall are possible across the southern Plains into Arkansas. Widespread showers with a slight chance of thunderstorms are possible across southern California. Urban flooding, rock and mudslides as well as minor debris flows near burn scars are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Airport (KPDX)

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

Partly Cloudy

37°F

3°C

Humidity 100%
Wind Speed WSW 3 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 21 Nov 04:00 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
  •  
    Dense Fog Advisory until November 21, 10:00am

    NOW until 10:00am Fri

    Dense Fog Advisory

  • Overnight

    Low: 38 °F

    Patchy Dense
    Fog

  • Friday

    Friday: Patchy dense fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 52. Calm wind.

    High: 52 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Friday Night

    Friday Night: 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. Chance of precipitation is 90%.

    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.

    High: 50 °F

    Showers
    Likely

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 38. Calm wind.
Friday
Patchy dense fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 52. Calm wind.
Friday Night
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. Chance of precipitation is 90%.
Sunday Night
Showers. Low around 40. Chance of precipitation is 80%.
Monday
Showers likely, mainly before 10am. Partly sunny, with a high near 50.
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. 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.53°N 122.67°W (Elev. 200 ft)
Last Update:
3:45 am PST Nov 21, 2025
Forecast Valid:
4am PST Nov 21, 2025-6pm PST Nov 27, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation