National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Overcast

55°F

13°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 04 Oct 04:53 AM PDT
Extended Forecast for

Hillsboro OR

  • Overnight

    Overnight: A 40 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 8am, then a chance of showers after 10am. Patchy fog between 7am and 9am. Otherwise, partly sunny, with a high near 69. Light and variable wind. Chance of precipitation is 40%.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: A 10 percent chance of showers before 7pm. Mostly clear, with a low around 47. Northwest wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 72. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47. North wind 5 to 8 mph.

    Low: 47 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of showers. Mostly cloudy, with a low around 53. Calm wind.
Saturday
A chance of showers before 8am, then a chance of showers after 10am. Patchy fog between 7am and 9am. Otherwise, partly sunny, with a high near 69. Light and variable wind. Chance of precipitation is 40%.
Saturday Night
A 10 percent chance of showers before 7pm. Mostly clear, with a low around 47. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 72. Calm wind becoming northeast 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 47. North wind 5 to 8 mph.
Monday
Sunny, with a high near 75.
Monday Night
Clear, with a low around 48.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
A slight chance of rain after 11am. Mostly sunny, with a high near 70.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Thursday
A slight chance of rain. Mostly sunny, with a high near 72.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 50.
Friday
A chance of rain. Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.95°W (Elev. 200 ft)
Last Update:
4:45 am PDT Oct 4, 2025
Forecast Valid:
5am PDT Oct 4, 2025-6pm PDT Oct 10, 2025
 
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