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.

Partly Cloudy

72°F

22°C

Humidity 64%
Wind Speed NE 8 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 15 Aug 07:00 PM PDT
Extended Forecast for

4 Miles NNE Hillsboro OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Light northwest wind.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 83. Calm wind.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. North wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 85. Light north wind.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 55. Light northwest wind.

    Low: 55 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. Light northwest wind.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 83. Calm wind.
Sunday Night
Mostly cloudy, with a low around 55. North wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 85. Light north wind.
Monday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 55. Light northwest wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 82.
Tuesday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 53.
Wednesday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 56.
Friday
Partly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Hillsboro OR
 45.58°N 122.9°W (Elev. 200 ft)
Last Update:
6:41 pm PDT Aug 15, 2026
Forecast Valid:
7pm PDT Aug 15, 2026-6pm PDT Aug 22, 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