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-Hillsboro Airport (KHIO)

Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.

Clear

45°F

7°C

Humidity	75%
Wind Speed	N 0 MPH
Barometer	29.45 in (997.29 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	25 Dec 06:20 AM PST

More Information:

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

Extended Forecast for

3 Miles WSW Cedar Hills OR

Christmas Day
High: 53 °F
Rain Likely
then Chance
Rain
Tonight
Low: 40 °F
Mostly Cloudy
then Showers
Likely and
Patchy Dense
Fog
Friday
High: 47 °F
Showers
Friday Night
Low: 36 °F
Showers
Saturday
High: 45 °F
Chance
Showers and
Patchy Fog
then Mostly
Cloudy
Saturday Night
Low: 34 °F
Mostly Cloudy
then Patchy
Fog
Sunday
High: 45 °F
Patchy Fog
then Mostly
Cloudy
Sunday Night
Low: 33 °F
Mostly Cloudy
then Patchy
Fog
Monday
High: 46 °F
Patchy Fog
then Partly
Sunny

Detailed Forecast

Christmas Day

Rain likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 53. East northeast wind around 5 mph becoming light and variable. Chance of precipitation is 70%.

Tonight

A chance of rain between midnight and 4am, then showers likely after 4am. Patchy dense fog between 2am and 3am. Otherwise, increasing clouds, with a low around 40. Calm wind. Chance of precipitation is 60%.

Friday

Showers. High near 47. South wind 5 to 7 mph becoming west in the afternoon. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Showers, mainly before 4am. Snow level 1600 feet. Low around 36. Southwest wind around 6 mph. Chance of precipitation is 80%.

Saturday

A 30 percent chance of showers before 10am. Patchy fog before 10am. Snow level 1500 feet. Otherwise, mostly cloudy, with a high near 45. Calm wind.

Saturday Night

Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 34.

Sunday

Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 45.

Sunday Night

Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 33.

Monday

Patchy fog before 8am. Otherwise, partly sunny, with a high near 46.