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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

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

Mostly Cloudy

43°F

6°C

Humidity 93%
Wind Speed W 4 MPH
Barometer 29.48 in (998.31 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 25 Dec 08:55 AM PST
Extended Forecast for

Portland OR

  • Christmas Day

    Christmas Day: Rain likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 53. East northeast wind 5 to 7 mph becoming south southeast in the afternoon. Chance of precipitation is 60%.

    High: 53 °F

    Rain Likely
    then Chance
    Rain

  • Tonight

    Tonight: A chance of rain between midnight and 4am, then showers likely after 4am. Increasing clouds, with a low around 41. Southeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 41 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers. High near 47. Southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Showers

  • Friday Night

    Friday Night: Showers, mainly before 4am. Snow level 1500 feet. Low around 37. Southwest wind around 7 mph. Chance of precipitation is 80%.

    Low: 37 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 10am. Snow level 1500 feet. Mostly cloudy, with a high near 45. West southwest wind around 6 mph.

    High: 45 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 35.

    Low: 35 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 45.

    High: 45 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

Detailed Forecast

Christmas Day
Rain likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 53. East northeast wind 5 to 7 mph becoming south southeast in the afternoon. Chance of precipitation is 60%.
Tonight
A chance of rain between midnight and 4am, then showers likely after 4am. Increasing clouds, with a low around 41. Southeast wind around 5 mph. Chance of precipitation is 60%.
Friday
Showers. High near 47. Southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers, mainly before 4am. Snow level 1500 feet. Low around 37. Southwest wind around 7 mph. Chance of precipitation is 80%.
Saturday
A 30 percent chance of showers before 10am. Snow level 1500 feet. Mostly cloudy, with a high near 45. West southwest wind around 6 mph.
Saturday Night
Patchy fog before 2am, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 35.
Sunday
Patchy fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Partly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 47.
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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:
8:41 am PST Dec 25, 2025
Forecast Valid:
9am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation