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.

Mostly Cloudy

56°F

13°C

Humidity 86%
Wind Speed SSE 12 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 30 Sep 09:53 PM PDT
Extended Forecast for

3 Miles ENE Hillsboro OR

  • Tonight

    Tonight: A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 54. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 54 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 68. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. South wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 68. South wind 7 to 10 mph. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers before 11pm. Partly cloudy, with a low around 50. South southwest wind around 6 mph becoming calm in the evening.

    Low: 50 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 69.

    High: 69 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers. Partly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 54. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 68. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. South wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 68. South wind 7 to 10 mph. Chance of precipitation is 70%.
Thursday Night
A 40 percent chance of showers before 11pm. Partly cloudy, with a low around 50. South southwest wind around 6 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 69.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 76.
Monday Night
Clear, with a low around 48.
Tuesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Hillsboro OR
 45.54°N 122.86°W (Elev. 200 ft)
Last Update:
9:41 pm PDT Sep 30, 2025
Forecast Valid:
10pm PDT Sep 30, 2025-6pm PDT Oct 7, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation