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.

Overcast

54°F

12°C

Humidity 46%
Wind Speed SW 4 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 16 Apr 01:35 PM PDT
Extended Forecast for

3 Miles SSW Cedar Hills OR

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

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 57. West wind 3 to 5 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. West northwest wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Patchy frost before 7am. Otherwise, increasing clouds, with a high near 60. Light and variable wind.

    High: 60 °F

    Patchy Frost
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. Light north wind.

    Low: 41 °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 50.

    Low: 50 °F

    Slight Chance
    Rain

  • Sunday

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

    High: 71 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain after 11am. Mostly cloudy, with a high near 71.

    High: 71 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 57. West wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 37. West northwest wind around 5 mph becoming calm in the evening.
Friday
Patchy frost before 7am. Otherwise, increasing clouds, with a high near 60. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 41. Light north 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 50.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 71.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 50.
Monday
A slight chance of rain after 11am. Mostly cloudy, with a high near 71.
Monday Night
A chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Partly sunny, with a high near 66.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
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:
3 Miles SSW Cedar Hills OR
 45.46°N 122.84°W (Elev. 348 ft)
Last Update:
12:41 pm PDT Apr 16, 2026
Forecast Valid:
1pm PDT Apr 16, 2026-6pm PDT Apr 22, 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