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Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

37°F

3°C

Humidity 61%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 20 Jan 06:53 PM PST
Extended Forecast for

4 Miles E Farmington OR

Air Stagnation Advisory January 20, 07:07pm until January 23, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 07:07pm until January 23, 12:00pm

    NOW until 12:00pm Fri

    Air Stagnation Advisory

  • Tonight

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Widespread frost between 9am and 10am.  Otherwise, mostly sunny, with a high near 47. East northeast wind 5 to 7 mph, with gusts as high as 18 mph.

    High: 47 °F

    Frost then
    Sunny

  • Wednesday Night

    Wednesday Night: Widespread frost, mainly after 10pm.  Otherwise, mostly clear, with a low around 29. North northeast wind around 6 mph.

    Low: 29 °F

    Frost

  • Thursday

    Thursday: Widespread frost, mainly before 10am.  Otherwise, mostly sunny, with a high near 45. Northeast wind around 6 mph.

    High: 45 °F

    Frost then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 10pm.  Otherwise, partly cloudy, with a low around 28. Light north northeast wind.

    Low: 28 °F

    Frost

  • Friday

    Friday: Widespread frost between 10am and 11am.  Otherwise, sunny, with a high near 46.

    High: 46 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Widespread frost after 3am.  Otherwise, clear, with a low around 28.

    Low: 28 °F

    Clear then
    Frost

  • Saturday

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

    High: 45 °F

    Frost then
    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. North northeast wind 8 to 11 mph.
Wednesday
Widespread frost between 9am and 10am. Otherwise, mostly sunny, with a high near 47. East northeast wind 5 to 7 mph, with gusts as high as 18 mph.
Wednesday Night
Widespread frost, mainly after 10pm. Otherwise, mostly clear, with a low around 29. North northeast wind around 6 mph.
Thursday
Widespread frost, mainly before 10am. Otherwise, mostly sunny, with a high near 45. Northeast wind around 6 mph.
Thursday Night
Widespread frost, mainly after 10pm. Otherwise, partly cloudy, with a low around 28. Light north northeast wind.
Friday
Widespread frost between 10am and 11am. Otherwise, sunny, with a high near 46.
Friday Night
Widespread frost after 3am. Otherwise, clear, with a low around 28.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 45.
Saturday Night
Widespread frost before midnight, then widespread frost after 1am. Otherwise, partly cloudy, with a low around 28.
Sunday
Widespread frost before 10am. Otherwise, mostly sunny, with a high near 43.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 34.
Monday
A chance of rain. Partly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Farmington OR
 45.45°N 122.87°W (Elev. 600 ft)
6:41 pm PST Jan 20, 2026
7pm 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

National Digital Forecast Database