Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Mist

48°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Last update 09 Dec 09:00 PM PST
Extended Forecast for

3 Miles E Hillsboro OR

Flood Watch December 9, 09:22pm until December 11, 04:00pm
Wind Advisory until December 10, 10:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 9, 09:22pm until December 11, 04:00pm
    Wind Advisory until December 10, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 55 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 60. South southwest wind 11 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%.

    High: 60 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 53. South southwest wind around 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Rain

  • Thursday

    Thursday: Rain, mainly before 4pm.  High near 59. South southwest wind 6 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Chance Rain
    then Slight
    Chance Rain

  • Friday

    Friday: A 10 percent chance of rain after 4pm.  Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain. Steady temperature around 55. South southwest wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Wednesday
Rain. High near 60. South southwest wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Wednesday Night
Rain. Low around 53. South southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly before 4pm. High near 59. South southwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 50 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 50. Calm wind.
Friday
A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 59.
Friday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 47.
Saturday
Mostly cloudy, with a high near 57.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 46.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 54.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46.
Monday
Rain. Cloudy, with a high near 56.
Monday Night
Rain. Mostly cloudy, with a low around 47.
Tuesday
Rain likely. Mostly cloudy, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Hillsboro OR
 45.52°N 122.85°W (Elev. 200 ft)
8:41 pm PST Dec 9, 2025
9pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database