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

82°F

28°C

Humidity 24%
Wind Speed NNW 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 21 May 04:35 PM PDT
Extended Forecast for

4 Miles ENE Hillsboro OR

  • Tonight

    Tonight: Mostly clear, with a low around 54. North wind 5 to 9 mph becoming calm after midnight.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Light north northwest wind.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. North northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: Rain likely, mainly after 11am. Mostly cloudy, with a high near 63.

    High: 63 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 54. North wind 5 to 9 mph becoming calm after midnight.
Friday
Sunny, with a high near 82. Calm wind becoming north 5 to 8 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 51. North northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 79. Light north northwest wind.
Saturday Night
Mostly clear, with a low around 48. North northwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 51.
Memorial Day
Rain likely, mainly after 11am. Mostly cloudy, with a high near 63.
Monday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain, mainly after 11am. Partly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A slight chance of rain. Partly sunny, with a high near 69.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 48.
Thursday
Partly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Hillsboro OR
 45.56°N 122.87°W (Elev. 200 ft)
Last Update:
4:41 pm PDT May 21, 2026
Forecast Valid:
4pm PDT May 21, 2026-6pm PDT May 28, 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