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Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

30°F

-1°C

Humidity 92%
Wind Speed NW 3 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Jan 09:35 PM PST
Extended Forecast for

3 Miles WSW Cedar Hills OR

Air Stagnation Advisory January 20, 09:54pm until January 23, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 09:54pm until January 23, 12:00pm

    NOW until 12:00pm Fri

    Air Stagnation Advisory

  • Tonight

    Low: 27 °F

    Partly Cloudy
    then Frost

  • Wednesday

    Wednesday: Widespread frost before 10am.  Otherwise, mostly sunny, with a high near 49. North wind 3 to 5 mph.

    High: 49 °F

    Frost then
    Sunny

  • Wednesday Night

    Wednesday Night: Widespread frost, mainly after 9pm.  Otherwise, mostly clear, with a low around 26. North wind 3 to 5 mph.

    Low: 26 °F

    Frost

  • Thursday

    Thursday: Widespread frost, mainly before 11am.  Otherwise, mostly sunny, with a high near 46. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 46 °F

    Frost then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 9pm.  Otherwise, partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Frost

  • Friday

    Friday: Widespread frost, mainly before 10am.  Otherwise, sunny, with a high near 48.

    High: 48 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Widespread frost after 11pm.  Otherwise, clear, with a low around 28.

    Low: 28 °F

    Frost

  • Saturday

    Saturday: Widespread frost before 10am.  Otherwise, sunny, with a high near 47.

    High: 47 °F

    Frost then
    Sunny

Detailed Forecast

Tonight
Widespread frost after 5am. Otherwise, partly cloudy, with a low around 27. North wind 5 to 7 mph.
Wednesday
Widespread frost before 10am. Otherwise, mostly sunny, with a high near 49. North wind 3 to 5 mph.
Wednesday Night
Widespread frost, mainly after 9pm. Otherwise, mostly clear, with a low around 26. North wind 3 to 5 mph.
Thursday
Widespread frost, mainly before 11am. Otherwise, mostly sunny, with a high near 46. Calm wind becoming northeast around 6 mph in the afternoon.
Thursday Night
Widespread frost, mainly after 9pm. Otherwise, partly cloudy, with a low around 27. Calm wind.
Friday
Widespread frost, mainly before 10am. Otherwise, sunny, with a high near 48.
Friday Night
Widespread frost after 11pm. Otherwise, clear, with a low around 28.
Saturday
Widespread frost before 10am. Otherwise, sunny, with a high near 47.
Saturday Night
Widespread frost, mainly after 9pm. Otherwise, partly cloudy, with a low around 28.
Sunday
A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Widespread frost before 10am. Snow level 1400 feet rising to 2400 feet in the afternoon. Otherwise, mostly sunny, with a high near 45.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 34.
Monday
A chance of rain. Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Partly sunny, with a high near 51.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Cedar Hills OR
 45.5°N 122.88°W (Elev. 200 ft)
9:45 pm PST Jan 20, 2026
9pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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