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.

Overcast

56°F

13°C

Humidity 90%
Wind Speed SSE 6 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 01 Nov 04:53 AM PDT
Extended Forecast for

Hillsboro OR

  • Overnight

    Overnight: A 40 percent chance of rain. Cloudy, with a low around 54. South wind around 8 mph.

    Low: 54 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly before 2pm. High near 63. South wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain

  • Saturday Night

    Saturday Night: A chance of showers before 3am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 43. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 43 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 57. Calm wind.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 44. North wind 3 to 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of showers, mainly after 11am. Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers before 11pm, then rain after 11pm. Cloudy, with a low around 50.

    Low: 50 °F

    Showers

Detailed Forecast

Overnight
A 40 percent chance of rain. Cloudy, with a low around 54. South wind around 8 mph.
Saturday
Rain, mainly before 2pm. High near 63. South wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers before 3am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 43. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Sunday
Partly sunny, with a high near 57. Calm wind.
Sunday Night
Mostly cloudy, with a low around 44. North wind 3 to 5 mph.
Monday
A 40 percent chance of showers, mainly after 11am. Mostly cloudy, with a high near 57.
Monday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 60.
Tuesday Night
Showers before 11pm, then rain after 11pm. Cloudy, with a low around 50.
Wednesday
Rain. Cloudy, with a high near 60.
Wednesday Night
Rain and possibly a thunderstorm. Cloudy, with a low around 49.
Thursday
Rain. Cloudy, with a high near 58.
Thursday Night
Rain. Cloudy, with a low around 47.
Friday
Rain. Mostly cloudy, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hillsboro OR
 45.53°N 122.92°W (Elev. 200 ft)
Last Update:
4:46 am PDT Nov 1, 2025
Forecast Valid:
5am PDT Nov 1, 2025-6pm PST Nov 7, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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