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.

Clear

68°F

20°C

Humidity 45%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 24 Jun 01:25 AM PDT
Extended Forecast for

Hillsboro OR

  • Overnight

    Overnight: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91. Light north wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 53. Northwest wind 6 to 11 mph becoming light north northwest after midnight. Winds could gust as high as 18 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 76. Light and variable wind.

    High: 76 °F

    Cloudy

  • Thursday Night

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

    Low: 52 °F

    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 11am. High near 67. Chance of precipitation is 90%.

    High: 67 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Saturday

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

    High: 65 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of rain before 11pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 59. Calm wind.
Wednesday
Mostly sunny, with a high near 91. Light north wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Increasing clouds, with a low around 53. Northwest wind 6 to 11 mph becoming light north northwest after midnight. Winds could gust as high as 18 mph.
Thursday
Cloudy, with a high near 76. Light and variable wind.
Thursday Night
Showers, mainly after 11pm. Low around 52. West northwest wind 5 to 9 mph becoming south after midnight. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, with thunderstorms also possible after 11am. High near 67. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Showers likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 65.
Saturday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 47.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly cloudy, with a high near 69.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 70.
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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:
12:41 am PDT Jun 24, 2026
Forecast Valid:
1am PDT Jun 24, 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