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

73°F

23°C

Humidity 46%
Wind Speed NA 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 23 Jun 08:53 AM PDT
Extended Forecast for

Hillsboro OR

Heat Advisory June 23, 06:57pm until June 23, 11:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory June 23, 06:57pm until June 23, 11:00pm

    NOW until 11:00pm Tue

    Heat Advisory

  • Tonight

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. Light north wind becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Northwest wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain, mainly after 11pm. Low around 52. West wind 5 to 9 mph becoming south after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Rain

  • Friday

    Friday: Showers, with thunderstorms also possible after 11am. High near 66. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 65.

    High: 65 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Northwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 90. Light north wind becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 52. Northwest wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 20 mph.
Thursday
Partly sunny, with a high near 77. Calm wind.
Thursday Night
Rain, mainly after 11pm. Low around 52. West wind 5 to 9 mph becoming south after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, with thunderstorms also possible after 11am. High near 66. Chance of precipitation is 90%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 49.
Saturday
Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 65.
Saturday Night
A chance of rain, mainly before 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
Partly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.55°N 122.96°W (Elev. 194 ft)
Last Update:
6:41 pm PDT Jun 23, 2026
Forecast Valid:
6pm PDT Jun 23, 2026-6pm PDT Jun 30, 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