Storm Systems Continue to Impact the Pacific Northwest; Lake Effect Snow Continues

A second Pacific cold front will cross the Pacific Northwest Wednesday followed by another atmospheric river. Each of these features will bring additional periods of gusty winds, mountain snow, and heavy to excessive rainfall with renewed flooding. Heavy lake effect snow continues into Tuesday east of Lakes Erie and Ontario. Read More >

Hazardous Weather Conditions

Flood Watch in effect from December 18, 04:00 AM PST until December 20, 04:00 AM PST

Current conditions at

Portland, Portland International Airport (KPDX)

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

Mostly Cloudy

54°F

12°C

Humidity	81%
Wind Speed	S 3 MPH
Barometer	30.11 in (1019.64 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	15 Dec 08:00 PM PST

More Information:

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

Extended Forecast for

3 Miles SE Portland International Airport OR

Flood Watch December 18, 04:00am until December 20, 04:00am

Click here for hazard details and duration

Flood Watch

Tonight
Low: 49 °F
Chance
Showers then
Rain
Tuesday
High: 58 °F
Rain and
Breezy
Tuesday Night
Low: 44 °F
Showers and
Windy
Wednesday
High: 49 °F
Rain and
Breezy
Wednesday Night
Low: 42 °F
Rain
Thursday
High: 55 °F
Rain
Thursday Night
Low: 43 °F
Rain
Friday
High: 48 °F
Rain
Friday Night
Low: 39 °F
Chance Rain

Detailed Forecast

Tonight

A chance of rain and thunderstorms, then rain after 1am. Low around 49. South wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

Rain. High near 58. Breezy, with a south wind 13 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday Night

Rain and possibly a thunderstorm before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Low around 44. Windy, with a west southwest wind 21 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday

Rain, mainly before 4pm. High near 49. Breezy, with a southwest wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain, mainly after 10pm. Low around 42. Southeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday

Rain. High near 55. Chance of precipitation is 100%.

Thursday Night

Rain. Low around 43. Chance of precipitation is 90%.

Friday

Rain. Mostly cloudy, with a high near 48.

Friday Night

A chance of rain. Mostly cloudy, with a low around 39.

Saturday

Rain likely. Mostly cloudy, with a high near 46.

Saturday Night

A chance of rain. Mostly cloudy, with a low around 39.