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Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

25°F

-4°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 22 Jan 01:20 AM PST
Extended Forecast for

4 Miles E Farmington OR

Air Stagnation Advisory January 22, 01:35am until January 23, 12:00pm
Cold Weather Advisory until January 22, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
Cold Weather Advisory
  •  
    Air Stagnation Advisory January 22, 01:35am until January 23, 12:00pm
    Cold Weather Advisory until January 22, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 28 °F

    Frost

  • Thursday

    Thursday: Widespread frost between 9am and 10am. Otherwise, mostly cloudy, with a high near 41. North northeast wind around 5 mph becoming calm in the morning.

    High: 41 °F

    Frost then
    Mostly Cloudy

  • Thursday Night

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

    Low: 31 °F

    Frost

  • Friday

    Friday: Widespread frost before 10am. Otherwise, sunny, with a high near 45. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 45 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Widespread frost after 5am. Otherwise, clear, with a low around 27. North northeast wind 7 to 9 mph.

    Low: 27 °F

    Clear then
    Frost

  • Saturday

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

    High: 45 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost after 9pm. Otherwise, mostly clear, with a low around 27.

    Low: 27 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 10am. Otherwise, mostly sunny, with a high near 43.

    High: 43 °F

    Frost then
    Mostly Sunny

Detailed Forecast

Overnight
Widespread frost. Otherwise, clear early, then becoming mostly cloudy, with a low around 28. North wind around 6 mph.
Thursday
Widespread frost between 9am and 10am. Otherwise, mostly cloudy, with a high near 41. North northeast wind around 5 mph becoming calm in the morning.
Thursday Night
Areas of frost before 8pm, then widespread frost after 9pm. Otherwise, mostly cloudy, with a low around 31. Light east northeast wind.
Friday
Widespread frost before 10am. Otherwise, sunny, with a high near 45. Northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
Widespread frost after 5am. Otherwise, clear, with a low around 27. North northeast wind 7 to 9 mph.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 45.
Saturday Night
Widespread frost after 9pm. Otherwise, mostly clear, with a low around 27.
Sunday
Widespread frost before 10am. Otherwise, mostly sunny, with a high near 43.
Sunday Night
Widespread frost before 4am. Otherwise, mostly cloudy, with a low around 31.
Monday
Widespread frost between 7am and 10am. Otherwise, partly sunny, with a high near 44.
Monday Night
Areas of frost. Otherwise, mostly cloudy, with a low around 34.
Tuesday
Areas of frost. Otherwise, partly sunny, with a high near 49.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49.
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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:
1:01 am PST Jan 22, 2026
Forecast Valid:
1am PST Jan 22, 2026-6pm PST Jan 28, 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