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

48°F

9°C

Humidity 87%
Wind Speed S 14 MPH
Barometer 29.54 in (1000.34 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 24 Dec 11:35 AM PST
Extended Forecast for

Portland International Airport OR

  • Today

    Today: A 50 percent chance of rain. Partly sunny, with a high near 51. Windy, with a south southwest wind 16 to 24 mph, with gusts as high as 50 mph.

    High: 51 °F

    Chance Rain
    and Windy

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 4am. Increasing clouds, with a low around 41. East wind 6 to 9 mph becoming north after midnight.

    Low: 41 °F

    Mostly Clear
    then Chance
    Rain

  • Christmas Day

    Christmas Day: Rain likely, mainly after 10am. Mostly cloudy, with a high near 50. East wind around 10 mph. Chance of precipitation is 70%.

    High: 50 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 39. East wind around 6 mph.

    Low: 39 °F

    Chance Rain

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 47. South wind 7 to 10 mph becoming west southwest in the afternoon. Chance of precipitation is 70%.

    High: 47 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers. Snow level 2200 feet. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

Detailed Forecast

Today
A 50 percent chance of rain. Partly sunny, with a high near 51. Windy, with a south southwest wind 16 to 24 mph, with gusts as high as 50 mph.
Tonight
A 30 percent chance of rain, mainly after 4am. Increasing clouds, with a low around 41. East wind 6 to 9 mph becoming north after midnight.
Christmas Day
Rain likely, mainly after 10am. Mostly cloudy, with a high near 50. East wind around 10 mph. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 39. East wind around 6 mph.
Friday
Showers likely. Mostly cloudy, with a high near 47. South wind 7 to 10 mph becoming west southwest in the afternoon. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers. Snow level 2200 feet. Mostly cloudy, with a low around 38.
Saturday
Mostly cloudy, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland International Airport OR
 45.6°N 122.6°W (Elev. 200 ft)
Last Update:
11:41 am PST Dec 24, 2025
Forecast Valid:
11am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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Additional Resources

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Chance of Precipitation