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Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Overcast

36°F

2°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 22 Jan 06:35 PM PST
Extended Forecast for

Hillsboro OR

Air Stagnation Advisory January 22, 06:52pm until January 23, 12:00pm
Cold Weather Advisory January 22, 10:00pm until January 23, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Cold Weather Advisory
  •  
    Air Stagnation Advisory January 22, 06:52pm until January 23, 12:00pm

    NOW until 12:00pm Fri

    Air Stagnation Advisory

  • Tonight

    Low: 25 °F

    Slight Chance
    Rain then
    Frost

  • Friday

    Friday: Widespread frost before 11am.  Otherwise, sunny, with a high near 46. East northeast wind 3 to 6 mph.

    High: 46 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Widespread frost after 11pm.  Otherwise, clear, with a low around 23. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 23 °F

    Frost

  • Saturday

    Saturday: Widespread frost before 10am.  Otherwise, sunny, with a high near 47. Calm wind.

    High: 47 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost.  Otherwise, mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 11am.  Otherwise, mostly sunny, with a high near 45.

    High: 45 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain before 7pm. Widespread frost, mainly after 9pm. Snow level 2800 feet lowering to 1200 feet after midnight . Otherwise, mostly cloudy, with a low around 25. Calm wind.
Friday
Widespread frost before 11am. Otherwise, sunny, with a high near 46. East northeast wind 3 to 6 mph.
Friday Night
Widespread frost after 11pm. Otherwise, clear, with a low around 23. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Widespread frost before 10am. Otherwise, sunny, with a high near 47. Calm wind.
Saturday Night
Widespread frost. Otherwise, mostly clear, with a low around 24. Calm wind.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Mostly cloudy, with a high near 45.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 52.
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 51.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 39.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
6:45 pm PST Jan 22, 2026
6pm PST Jan 22, 2026-6pm PST Jan 29, 2026
 
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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