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 >

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Airport (KPDX)

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

Rain

46°F

8°C

Humidity 93%
Wind Speed S 12 MPH
Barometer 29.47 in (997.97 mb)
Dewpoint 45°F (7°C)
Visibility 7.00 mi
Wind Chill40°F (4°C)
Last update 24 Dec 10:20 AM PST
Extended Forecast for

2 Miles NNE Portland International Airport OR

Wind Advisory until December 24, 04:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 24, 04:00pm

    NOW until 4:00pm Wed

    Wind Advisory

  • Today

    High: 53 °F

    Chance Rain
    and Windy

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 4am. Increasing clouds, with a low around 40. East wind around 7 mph.

    Low: 40 °F

    Mostly Clear
    then Chance
    Rain

  • Christmas Day

    Christmas Day: Rain likely, mainly after 10am. Mostly cloudy, with a high near 52. East wind 7 to 10 mph. Chance of precipitation is 70%.

    High: 52 °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 6 to 9 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: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Patchy
    Fog

Detailed Forecast

Today
A 50 percent chance of rain. Partly sunny, with a high near 53. Windy, with an east southeast wind 15 to 23 mph becoming south southwest in the afternoon. Winds could gust as high as 49 mph.
Tonight
A 30 percent chance of rain, mainly after 4am. Increasing clouds, with a low around 40. East wind around 7 mph.
Christmas Day
Rain likely, mainly after 10am. Mostly cloudy, with a high near 52. East wind 7 to 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 6 to 9 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
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 34.
Sunday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Portland International Airport OR
 45.61°N 122.57°W (Elev. 200 ft)
Last Update:
8:56 am PST Dec 24, 2025
Forecast Valid:
10am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation