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Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

34°F

1°C

Humidity 80%
Wind Speed WNW 4 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 22 Jan 10:50 AM PST
Extended Forecast for

3 Miles SSW Cedar Hills OR

Air Stagnation Advisory January 22, 11:07am until January 23, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 22, 11:07am until January 23, 12:00pm

    NOW until 12:00pm Fri

    Air Stagnation Advisory

  • Today

    High: 43 °F

    Mostly Cloudy

  • Tonight

    Tonight: Areas of frost before 8pm, then widespread frost after 9pm.  Otherwise, mostly cloudy, with a low around 31. Light north northeast wind.

    Low: 31 °F

    Frost

  • Friday

    Friday: Widespread frost, mainly before 9am.  Otherwise, sunny, with a high near 47. Northeast wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 47 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Widespread frost after 5am.  Otherwise, clear, with a low around 28. North northeast wind 5 to 7 mph.

    Low: 28 °F

    Clear then
    Frost

  • Saturday

    Saturday: Widespread frost before 9am.  Otherwise, sunny, with a high near 46. Light north northeast wind.

    High: 46 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost after 9pm.  Otherwise, mostly clear, with a low around 28.

    Low: 28 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am.  Otherwise, mostly sunny, with a high near 45.

    High: 45 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread frost, mainly between 10pm and 4am.  Otherwise, mostly cloudy, with a low around 31.

    Low: 31 °F

    Frost

Detailed Forecast

Today
Mostly cloudy, with a high near 43. Light north northeast wind.
Tonight
Areas of frost before 8pm, then widespread frost after 9pm. Otherwise, mostly cloudy, with a low around 31. Light north northeast wind.
Friday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 47. Northeast wind 5 to 9 mph, with gusts as high as 18 mph.
Friday Night
Widespread frost after 5am. Otherwise, clear, with a low around 28. North northeast wind 5 to 7 mph.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 46. Light north northeast wind.
Saturday Night
Widespread frost after 9pm. Otherwise, mostly clear, with a low around 28.
Sunday
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 45.
Sunday Night
Widespread frost, mainly between 10pm and 4am. Otherwise, mostly cloudy, with a low around 31.
Monday
Widespread frost between 7am and 10am. Otherwise, partly sunny, with a high near 45.
Monday Night
Areas of frost after midnight. Otherwise, mostly cloudy, with a low around 34.
Tuesday
Areas of frost. Otherwise, partly sunny, with a high near 51.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A chance of rain. Mostly cloudy, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Cedar Hills OR
 45.46°N 122.84°W (Elev. 348 ft)
10:56 am PST Jan 22, 2026
11am PST Jan 22, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

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