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

Portland-Hillsboro Airport (KHIO)

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

Overcast

68°F

20°C

Humidity 70%
Wind Speed S 9 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 15 Aug 01:53 AM PDT
Extended Forecast for

Hillsboro OR

  • Overnight

    Overnight: Rain likely, mainly after 4am. Mostly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Rain Likely

  • Friday

    Friday: A 50 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 78. South wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 78 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain before 11pm, then showers after 11pm. Low around 64. South southwest wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Rain

  • Saturday

    Saturday: A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 79. West southwest wind 3 to 5 mph.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain likely, mainly after 4am. Mostly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 78. South wind 6 to 10 mph, with gusts as high as 18 mph.
Friday Night
Rain before 11pm, then showers after 11pm. Low around 64. South southwest wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 79. West southwest wind 3 to 5 mph.
Saturday Night
Partly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 57.
Monday
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Clear, with a low around 55.
Thursday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
Last Update:
1:41 am PDT Aug 15, 2025
Forecast Valid:
2am PDT Aug 15, 2025-6pm PDT Aug 21, 2025
 
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