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Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

54°F

12°C

Humidity 37%
Wind Speed ENE 8 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 17 Jan 02:35 PM PST
Extended Forecast for

3 Miles SSW Cedar Hills OR

Air Stagnation Advisory January 17, 07:00pm until January 20, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
  • This Afternoon

    This Afternoon: Sunny, with a high near 51. East northeast wind around 6 mph.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after midnight.  Otherwise, clear, with a low around 34. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am.  Otherwise, sunny, with a high near 51. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 51 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am.  Otherwise, clear, with a low around 35. Northeast wind 3 to 5 mph.

    Low: 35 °F

    Clear then
    Areas Frost

  • M.L.King Day

    M.L.King Day: Areas of frost before 8am.  Otherwise, sunny, with a high near 51. Northeast wind around 6 mph.

    High: 51 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Widespread frost, mainly after 3am.  Otherwise, mostly clear, with a low around 32.

    Low: 32 °F

    Frost

  • Tuesday

    Tuesday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 51.

    High: 51 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Areas of frost after 11pm.  Otherwise, partly cloudy, with a low around 34.

    Low: 34 °F

    Areas Frost

  • Wednesday

    Wednesday: Widespread frost, mainly before 8am.  Otherwise, partly sunny, with a high near 48.

    High: 48 °F

    Frost then
    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 51. East northeast wind around 6 mph.
Tonight
Areas of frost after midnight. Otherwise, clear, with a low around 34. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 51. Calm wind becoming east northeast around 5 mph in the afternoon.
Sunday Night
Areas of frost after 3am. Otherwise, clear, with a low around 35. Northeast wind 3 to 5 mph.
M.L.King Day
Areas of frost before 8am. Otherwise, sunny, with a high near 51. Northeast wind around 6 mph.
Monday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32.
Tuesday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 51.
Tuesday Night
Areas of frost after 11pm. Otherwise, partly cloudy, with a low around 34.
Wednesday
Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 48.
Wednesday Night
Areas of frost after 11pm. Otherwise, mostly cloudy, with a low around 34.
Thursday
A slight chance of rain. Widespread frost. Otherwise, partly sunny, with a high near 48.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain. Mostly cloudy, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Cedar Hills OR
 45.46°N 122.84°W (Elev. 348 ft)
2:46 pm PST Jan 17, 2026
2pm PST Jan 17, 2026-6pm PST Jan 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database