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.

Rain

52°F

11°C

Humidity 80%
Wind Speed S 5 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 26 May 12:53 AM PDT
Extended Forecast for

Hillsboro OR

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 46. Light south wind.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 67. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. North northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. North wind 5 to 8 mph becoming calm after midnight.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 46. Light south wind.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 67. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 48. North northwest wind 5 to 8 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53. North wind 5 to 8 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Mostly cloudy, with a high near 66.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.95°W (Elev. 200 ft)
Last Update:
12:41 am PDT May 26, 2026
Forecast Valid:
1am PDT May 26, 2026-6pm PDT Jun 1, 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