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.

Mostly Cloudy

48°F

9°C

Humidity 70%
Wind Speed NW 16 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 15 Apr 01:35 PM PDT
Extended Forecast for

3 Miles SSW Cedar Hills OR

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

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Snow level 2000 feet. High near 51. West wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 51 °F

    Showers

  • Tonight

    Tonight: Rain, possibly mixed with snow showers before 10pm, then a chance of rain showers. Some thunder is also possible. Snow level 1700 feet. Low around 35. West wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow
    then Chance
    Showers

  • Thursday

    Thursday: A 20 percent 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 57. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 57 °F

    Patchy Frost
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38. West wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Mostly Sunny

  • Friday Night

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

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 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

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Snow level 2000 feet. High near 51. West wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain, possibly mixed with snow showers before 10pm, then a chance of rain showers. Some thunder is also possible. Snow level 1700 feet. Low around 35. West wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
A 20 percent 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 57. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 38. West wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 61. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 68.
Saturday Night
A 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. 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 65.
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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:
1:41 pm PDT Apr 15, 2026
Forecast Valid:
1pm PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation