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.

Mostly Cloudy

60°F

16°C

Humidity 74%
Wind Speed SSE 6 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 03 Oct 12:53 PM PDT
Extended Forecast for

Hillsboro OR

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 69. Calm wind.

    High: 69 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly between 1am and 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51. Calm wind. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Showers likely, mainly after 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday Night

    Saturday Night: A 40 percent chance of showers before 11pm. Partly cloudy, with a low around 46. Northwest wind 3 to 6 mph.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 72. North wind 3 to 8 mph.

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 69. Calm wind.
Tonight
Showers likely, mainly between 1am and 2am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51. Calm wind. Chance of precipitation is 60%.
Saturday
Showers likely, mainly after 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
A 40 percent chance of showers before 11pm. Partly cloudy, with a low around 46. Northwest wind 3 to 6 mph.
Sunday
Sunny, with a high near 72. North wind 3 to 8 mph.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 74.
Monday Night
Clear, with a low around 45.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
A chance of showers. Mostly sunny, with a high near 69.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 47.
Thursday
A chance of showers. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.55°N 122.96°W (Elev. 194 ft)
Last Update:
12:41 pm PDT Oct 3, 2025
Forecast Valid:
1pm PDT Oct 3, 2025-6pm PDT Oct 9, 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