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

34°F

1°C

Humidity 96%
Wind Speed NW 3 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 17 Apr 05:53 AM PDT
Extended Forecast for

3 Miles WSW Cedar Hills OR

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

    NOW until 9:00am Fri

    Frost Advisory

  • Today

    High: 61 °F

    Patchy Frost
    then Partly
    Sunny

  • Tonight

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

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 71. Calm wind.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 50. Light and variable wind.

    Low: 50 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 73. Light and variable wind.

    High: 73 °F

    Slight Chance
    Showers

  • Sunday Night

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

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 73.

    High: 73 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Today
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 61. Calm wind.
Tonight
Mostly cloudy, with a low around 40. Calm wind.
Saturday
Partly sunny, with a high near 71. Calm wind.
Saturday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 50. Light and variable wind.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 73. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 73.
Monday Night
A chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Mostly cloudy, with a high near 66.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 61.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 44.
Thursday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Cedar Hills OR
 45.5°N 122.88°W (Elev. 200 ft)
Last Update:
5:41 am PDT Apr 17, 2026
Forecast Valid:
6am PDT Apr 17, 2026-6pm PDT Apr 23, 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