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

61°F

16°C

Humidity 72%
Wind Speed WNW 6 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 30 Aug 11:53 PM PDT
Extended Forecast for

3 Miles SW Hillsboro OR

  • Overnight

    Overnight: Partly cloudy, with a low around 53. Northwest wind around 6 mph.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86. Calm wind.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 55. Calm wind.

    Low: 55 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of rain before 2pm, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 72. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 72 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 54. Light southwest wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 23 mph.

    Low: 54 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 64. Chance of precipitation is 100%.

    High: 64 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain, mainly before 11pm. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Rain then
    Chance Rain

  • Thursday

    Thursday: Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 67.

    High: 67 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 53. Northwest wind around 6 mph.
Monday
Mostly sunny, with a high near 86. Calm wind.
Monday Night
Increasing clouds, with a low around 55. Calm wind.
Tuesday
A chance of rain before 2pm, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 72. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 54. Light southwest wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 23 mph.
Wednesday
Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 64. Chance of precipitation is 100%.
Wednesday Night
Rain, mainly before 11pm. Low around 50. Chance of precipitation is 90%.
Thursday
Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 67.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 49.
Friday
A chance of rain, mainly after 11am. Partly sunny, with a high near 69.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A slight chance of rain. Partly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Hillsboro OR
 45.5°N 123°W (Elev. 144 ft)
Last Update:
11:41 pm PDT Aug 30, 2026
Forecast Valid:
12am PDT Aug 31, 2026-6pm PDT Sep 6, 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