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.

Clear

70°F

21°C

Humidity 43%
Wind Speed N 0 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 07 Oct 06:35 PM PDT
Extended Forecast for

Hillsboro OR

  • Tonight

    Tonight: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. Light northwest wind.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly after 11pm. Partly cloudy, with a low around 44. Light northwest wind.

    Low: 44 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain. Mostly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 49. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Rain Likely

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.

    High: 65 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: Rain. Cloudy, with a high near 62.

    High: 62 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Cloudy, with a low around 46.

    Low: 46 °F

    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 48. Calm wind.
Wednesday
Mostly sunny, with a high near 64. Light northwest wind.
Wednesday Night
A 30 percent chance of rain, mainly after 11pm. Partly cloudy, with a low around 44. Light northwest wind.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 67. Calm wind.
Thursday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 49. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Friday Night
Rain. Low around 48. Chance of precipitation is 90%.
Saturday
Rain. Cloudy, with a high near 62.
Saturday Night
Rain. Cloudy, with a low around 46.
Sunday
Rain likely. Mostly cloudy, with a high near 60.
Sunday Night
Rain likely. Mostly cloudy, with a low around 45.
Columbus Day
A chance of rain. Partly sunny, with a high near 62.
Monday Night
A chance of rain. Partly cloudy, with a low around 44.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.51°N 122.91°W (Elev. 200 ft)
Last Update:
6:46 pm PDT Oct 7, 2025
Forecast Valid:
6pm PDT Oct 7, 2025-6pm PDT Oct 14, 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