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

39°F

4°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 15 Apr 09:53 PM PDT
Extended Forecast for

Cedar Hills OR

Frost Advisory April 16, 01:00am until April 16, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Snow level 1600 feet. Mostly cloudy, with a low around 36. South wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 36 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers between 2pm and 3pm. Patchy frost before 8am. Snow level 1900 feet rising to 3400 feet in the afternoon. Otherwise, mostly sunny, with a high near 56. Light and variable wind becoming west around 6 mph in the morning. Chance of precipitation is 20%.

    High: 56 °F

    Patchy Frost
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Mostly Sunny

  • Friday Night

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

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance Rain

  • Sunday Night

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

    Low: 49 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Snow level 1600 feet. Mostly cloudy, with a low around 36. South wind 3 to 6 mph. Chance of precipitation is 50%.
Thursday
A slight chance of showers between 2pm and 3pm. Patchy frost before 8am. Snow level 1900 feet rising to 3400 feet in the afternoon. Otherwise, mostly sunny, with a high near 56. Light and variable wind becoming west around 6 mph in the morning. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 39. West northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 60. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 41. Light north northeast wind.
Saturday
Partly sunny, with a high near 67.
Saturday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 49.
Sunday
A chance of rain. Mostly cloudy, with a high near 68.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 49.
Monday
A slight chance of rain after 11am. Partly sunny, with a high near 70.
Monday Night
A chance of rain. Mostly cloudy, with a low around 50.
Tuesday
A chance of rain. Mostly cloudy, with a high near 64.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cedar Hills OR
 45.53°N 122.8°W (Elev. 361 ft)
Last Update:
9:41 pm PDT Apr 15, 2026
Forecast Valid:
10pm PDT Apr 15, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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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