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.

Rain

54°F

12°C

Humidity 71%
Wind Speed SSW 4 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 May 12:00 PM PDT
Extended Forecast for

2 Miles WSW Hillsboro OR

  • This Afternoon

    This Afternoon: A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 59. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of rain and thunderstorms before 1am, then a slight chance of rain between 1am and 5am. Mostly cloudy, with a low around 43. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 43 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms, mainly between 3pm and 4pm. Partly sunny, with a high near 58. Light southwest wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. West northwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 20 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. Light north wind.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 59. West southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tonight
A chance of rain and thunderstorms before 1am, then a slight chance of rain between 1am and 5am. Mostly cloudy, with a low around 43. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 50%.
Saturday
Rain likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms, mainly between 3pm and 4pm. Partly sunny, with a high near 58. Light southwest wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, with a low around 40. West northwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 20 mph.
Sunday
Partly sunny, with a high near 64. Light north wind.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Hillsboro OR
 45.52°N 122.98°W (Elev. 161 ft)
Last Update:
11:42 am PDT May 15, 2026
Forecast Valid:
12pm PDT May 15, 2026-6pm PDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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