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.

Partly Cloudy

43°F

6°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 16 Apr 10:15 AM PDT
Extended Forecast for

Hillsboro OR

  • Today

    Today: Mostly sunny, with a high near 58. Light southwest wind.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog between 3am and 5am. Patchy frost after 2am. Otherwise, partly cloudy, with a low around 35. West northwest wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Partly Cloudy
    then Patchy
    Frost and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 7am. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 62. Calm wind.

    High: 62 °F

    Areas Frost
    and Patchy
    Fog then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 69. Calm wind.

    High: 69 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A slight chance of rain before 11am, then a chance of showers after 11am. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.

    High: 69 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: A chance of rain, mainly after 11am. Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 58. Light southwest wind.
Tonight
Patchy fog between 3am and 5am. Patchy frost after 2am. Otherwise, partly cloudy, with a low around 35. West northwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 7am. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 62. Calm wind.
Friday Night
Mostly cloudy, with a low around 39. Calm wind.
Saturday
Partly sunny, with a high near 69. Calm wind.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 49.
Sunday
A slight chance of rain before 11am, then a chance of showers after 11am. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
Sunday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 49.
Monday
A chance of rain, mainly after 11am. Mostly cloudy, with a high near 69.
Monday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Mostly cloudy, with a high near 62.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
Last Update:
9:41 am PDT Apr 16, 2026
Forecast Valid:
10am PDT Apr 16, 2026-6pm PDT Apr 22, 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