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

54°F

12°C

Humidity 81%
Wind Speed WNW 11 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 27 May 12:10 AM PDT
Extended Forecast for

3 Miles SW Hillsboro OR

  • Overnight

    Overnight: Mostly clear, with a low around 47. West northwest wind 3 to 6 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light north northwest wind becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. North northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 82. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 82 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 52. West wind 5 to 9 mph becoming calm in the evening.

    Low: 52 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 47. West northwest wind 3 to 6 mph.
Wednesday
Sunny, with a high near 79. Light north northwest wind becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 53. North northwest wind 5 to 9 mph becoming calm after midnight.
Thursday
Increasing clouds, with a high near 82. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 52. West wind 5 to 9 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 66.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Hillsboro OR
 45.5°N 123°W (Elev. 144 ft)
Last Update:
11:41 pm PDT May 26, 2026
Forecast Valid:
12am PDT May 27, 2026-6pm PDT Jun 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation