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Hazardous Weather Conditions

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 N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 17 Jan 08:50 PM PST
Extended Forecast for

4 Miles E Farmington OR

Air Stagnation Advisory until January 20, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory until January 20, 10:00am

    NOW until 10:00am Tue

    Air Stagnation Advisory

  • Tonight

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 49. East northeast wind 3 to 5 mph.

    High: 49 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am. Otherwise, clear, with a low around 35. Northeast wind around 6 mph.

    Low: 35 °F

    Clear then
    Areas Frost

  • M.L.King Day

    M.L.King Day: Areas of frost before 9am. Otherwise, sunny, with a high near 50. Northeast wind around 6 mph.

    High: 50 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. Northeast wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Frost

  • Tuesday

    Tuesday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 49.

    High: 49 °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 47.

    High: 47 °F

    Frost then
    Partly Sunny

Detailed Forecast

Tonight
Areas of frost after midnight. Otherwise, clear, with a low around 34. North northeast wind 3 to 6 mph.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 49. East northeast wind 3 to 5 mph.
Sunday Night
Areas of frost after 3am. Otherwise, clear, with a low around 35. Northeast wind around 6 mph.
M.L.King Day
Areas of frost before 9am. Otherwise, sunny, with a high near 50. Northeast wind around 6 mph.
Monday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. Northeast wind around 6 mph becoming calm in the evening.
Tuesday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 49.
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 47.
Wednesday Night
Areas of frost after 11pm. Otherwise, mostly cloudy, with a low around 34.
Thursday
A slight chance of rain after 10am. Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 46.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain. Mostly cloudy, with a high near 48.
Friday Night
A chance of rain. Mostly cloudy, with a low around 39.
Saturday
A chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Farmington OR
 45.45°N 122.87°W (Elev. 600 ft)
Last Update:
8:45 pm PST Jan 17, 2026
Forecast Valid:
9pm PST Jan 17, 2026-6pm PST Jan 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation