Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Mostly Cloudy

57°F

14°C

Humidity 87%
Wind Speed S 12 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Dec 09:35 PM PST
Extended Forecast for

Cedar Hills OR

  • Tonight

    Tonight: Showers.  Low around 54. South southwest wind 10 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.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before noon.  High near 59. South southwest wind 6 to 8 mph.  Chance of precipitation is 80%.

    High: 59 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 10pm.  Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 58. Calm wind.

    High: 58 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Patchy fog.  Otherwise, mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am.  Otherwise, partly sunny, with a high near 56.

    High: 56 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain, mainly after 10pm.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Rain

Detailed Forecast

Tonight
Showers. Low around 54. South southwest wind 10 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.
Thursday
Showers, mainly before noon. High near 59. South southwest wind 6 to 8 mph. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers before 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 50. Calm wind.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 58. Calm wind.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 47. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 56.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 56.
Sunday Night
Rain, mainly after 10pm. Mostly cloudy, with a low around 49.
Monday
Rain. Cloudy, with a high near 58.
Monday Night
Rain. Cloudy, with a low around 47.
Tuesday
Rain. Mostly cloudy, with a high near 55.
Tuesday Night
Rain. Cloudy, with a low around 45.
Wednesday
Rain. Cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Cedar Hills OR
 45.48°N 122.81°W (Elev. 200 ft)
9:45 pm PST Dec 10, 2025
9pm PST Dec 10, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database