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

Hazardous Weather Conditions

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

43°F

6°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 16 Apr 11:35 PM PDT
Extended Forecast for

2 Miles WSW Hillsboro OR

Frost Advisory April 17, 01:00am until April 17, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Patchy fog between 3am and 4am. Patchy frost after 3am. Otherwise, partly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Frost
    and Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am. Patchy frost before 8am. Otherwise, partly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Patchy Frost
    and Patchy
    Fog then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70. Calm wind.

    High: 70 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 11am. Mostly cloudy, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog between 3am and 4am. Patchy frost after 3am. Otherwise, partly cloudy, with a low around 35. Calm wind.
Friday
Patchy fog before 7am. Patchy frost before 8am. Otherwise, partly sunny, with a high near 59. Calm wind.
Friday Night
Mostly cloudy, with a low around 40. Calm wind.
Saturday
Partly sunny, with a high near 70. Calm wind.
Saturday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 49. Light and variable wind.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
A slight chance of showers after 11am. Mostly cloudy, with a high near 72.
Monday Night
A chance of rain. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Mostly cloudy, with a high near 65.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 60.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Hillsboro OR
 45.52°N 122.98°W (Elev. 161 ft)
Last Update:
11:41 pm PDT Apr 16, 2026
Forecast Valid:
11pm PDT Apr 16, 2026-6pm PDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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