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

63°F

17°C

Humidity 39%
Wind Speed NW 10 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 19 Apr 09:00 PM PDT
Extended Forecast for

Hillsboro OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 73 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Patchy fog before 8am. Otherwise, cloudy, with a high near 60. Light west northwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Rain Likely
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 47. West northwest wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Thursday Night

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

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. Light and variable wind.
Monday
Mostly cloudy, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly after 11am. Patchy fog before 8am. Otherwise, cloudy, with a high near 60. Light west northwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 47. West northwest wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 44.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
Last Update:
8:41 pm PDT Apr 19, 2026
Forecast Valid:
9pm PDT Apr 19, 2026-6pm PDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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