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.

Fog

41°F

5°C

Humidity	95%
Wind Speed	N 0 MPH
Barometer	29.62 in (1003.05 mb)
Dewpoint	40°F (4°C)
Visibility	0.50 mi
Last update	24 Dec 09:07 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles ENE Portland International Airport OR

Tonight
Low: 39 °F
Partly Cloudy
then Chance
Rain
Christmas Day
High: 51 °F
Rain Likely
then Chance
Rain
Thursday Night
Low: 39 °F
Rain Likely
Friday
High: 47 °F
Showers
Friday Night
Low: 36 °F
Showers
Saturday
High: 45 °F
Slight Chance
Showers then
Mostly Cloudy
Saturday Night
Low: 33 °F
Mostly Cloudy
Sunday
High: 46 °F
Mostly Cloudy
Sunday Night
Low: 33 °F
Mostly Cloudy

Detailed Forecast

Tonight

A 30 percent chance of rain, mainly after 5am. Increasing clouds, with a low around 39. East wind 6 to 10 mph, with gusts as high as 18 mph.

Christmas Day

Rain likely, mainly between 8am and noon. Mostly cloudy, with a high near 51. East wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

A slight chance of rain before 9pm, then rain likely after 10pm. Mostly cloudy, with a low around 39. East wind around 7 mph. Chance of precipitation is 60%.

Friday

Showers. High near 47. Southeast wind 8 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 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 1700 feet. Low around 36. West southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

Saturday

A 20 percent chance of showers before 10am. Snow level 1300 feet rising to 1800 feet in the afternoon. Mostly cloudy, with a high near 45.

Saturday Night

Mostly cloudy, with a low around 33.

Sunday

Mostly cloudy, with a high near 46.

Sunday Night

Mostly cloudy, with a low around 33.

Monday

Partly sunny, with a high near 47.

Monday Night

Partly cloudy, with a low around 33.