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

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Mostly Cloudy

43°F

6°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	30.22 in (1023.37 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Last update	07 Dec 10:53 PM PST

More Information:

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

Extended Forecast for

Hillsboro OR

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

Wind Advisory December 8, 07:00am until December 9, 04:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Tonight
Low: 49 °F
Showers
Monday
High: 58 °F
Showers and
Breezy
Monday Night
Low: 48 °F
Rain and
Breezy
Tuesday
High: 57 °F
Rain
Tuesday Night
Low: 51 °F
Rain
Wednesday
High: 58 °F
Rain
Wednesday Night
Low: 52 °F
Rain
Thursday
High: 59 °F
Rain Likely
Thursday Night
Low: 50 °F
Chance Rain

Detailed Forecast

Tonight

Showers, mainly after 5am. Low around 49. Light south wind. Chance of precipitation is 80%.

Monday

Showers before 10am, then rain, mainly after 10am. High near 58. Breezy, with a south southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Monday Night

Rain. Low around 48. Breezy, with a south southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Tuesday

Rain. High near 57. Light and variable wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Tuesday Night

Rain. Low around 51. South southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday

Rain. High near 58. Chance of precipitation is 100%.

Wednesday Night

Rain. Low around 52. Chance of precipitation is 90%.

Thursday

Rain likely, mainly before 10am. Cloudy, with a high near 59.

Thursday Night

A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 50.

Friday

A slight chance of rain before 10am. Mostly cloudy, with a high near 59.

Friday Night

A slight chance of rain. Mostly cloudy, with a low around 47.