Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Flood Watch in effect from December 8, 04:00 AM PST until December 12, 04:00 AM PST

Current conditions at

Portland, Portland International Airport (KPDX)

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

Mist

53°F

12°C

Humidity	89%
Wind Speed	S 17 MPH
Barometer	30.06 in (1017.95 mb)
Dewpoint	50°F (10°C)
Visibility	3.00 mi
Last update	07 Dec 10:53 AM PST

More Information:

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

Extended Forecast for

Portland OR

Flood Watch December 8, 04:00am until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Today
High: 56 °F
Rain
Tonight
Low: 51 °F
Chance Rain
then Rain
Likely
Monday
High: 57 °F
Rain and
Breezy
Monday Night
Low: 48 °F
Rain and
Breezy
Tuesday
High: 56 °F
Rain
Tuesday Night
Low: 49 °F
Rain
Wednesday
High: 57 °F
Rain
Wednesday Night
Low: 48 °F
Rain
Thursday
High: 54 °F
Rain Likely

Detailed Forecast

Today

Rain, mainly after 4pm. High near 56. South southwest wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Rain likely, mainly after 1am. Mostly cloudy, with a low around 51. South wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

Rain. High near 57. Breezy, with a south southwest wind 10 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Monday Night

Rain. Low around 48. Breezy, with a southwest wind 10 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tuesday

Rain. High near 56. Southeast wind around 7 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Tuesday Night

Rain. Low around 49. Chance of precipitation is 100%.

Wednesday

Rain. High near 57. Chance of precipitation is 100%.

Wednesday Night

Rain. Cloudy, with a low around 48.

Thursday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 54.

Thursday Night

A chance of rain. Mostly cloudy, with a low around 48.

Friday

A chance of rain. Mostly cloudy, with a high near 56.