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.

light rain,mist

49°F

9°C

Humidity 89%
Wind Speed ENE 3 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 46°F (8°C)
Visibility 6.00 mi
Last update 03 Nov 12:53 PM PST
Extended Forecast for

Hillsboro OR

  • This Afternoon

    This Afternoon: Rain. High near 52. Light east southeast wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain

  • Tonight

    Tonight: Rain before 1am, then a chance of rain after 4am. Patchy fog after 5am. Low around 46. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain then
    Chance Rain
    and Patchy
    Fog

  • Tuesday

    Tuesday: Rain, mainly after 2pm. Patchy fog before 10am. High near 59. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Chance Rain
    and Patchy
    Fog then Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 50. East wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Rain

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 1pm. High near 60. South wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 100%.

    Low: 49 °F

    Showers

  • Thursday

    Thursday: Rain. High near 58. Chance of precipitation is 100%.

    High: 58 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Cloudy, with a low around 47.

    Low: 47 °F

    Rain

  • Friday

    Friday: Rain, mainly before 4pm. Mostly cloudy, with a high near 58.

    High: 58 °F

    Rain

Detailed Forecast

This Afternoon
Rain. High near 52. Light east southeast wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain before 1am, then a chance of rain after 4am. Patchy fog after 5am. Low around 46. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain, mainly after 2pm. Patchy fog before 10am. High near 59. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 50. East wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers, with thunderstorms also possible after 1pm. High near 60. South wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 100%.
Thursday
Rain. High near 58. Chance of precipitation is 100%.
Thursday Night
Rain. Cloudy, with a low around 47.
Friday
Rain, mainly before 4pm. Mostly cloudy, with a high near 58.
Friday Night
A chance of rain before 10pm, then a slight chance of rain after 4am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 41.
Saturday
A slight chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 57.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.95°W (Elev. 200 ft)
Last Update:
1:05 pm PST Nov 3, 2025
Forecast Valid:
1pm PST Nov 3, 2025-6pm PST Nov 9, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation