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.

Mist

45°F

7°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 45°F (7°C)
Visibility 2.50 mi
Last update 12 Oct 11:53 PM PDT
Extended Forecast for

3 Miles WSW Hillsboro OR

  • Overnight

    Overnight: A chance of showers before 2am, then a slight chance of showers after 5am. Patchy fog before 1am. Otherwise, mostly cloudy, with a steady temperature around 45. Light and variable wind. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers and
    Patchy Fog

  • Columbus Day

    Columbus Day: A 20 percent chance of showers before 8am. Partly sunny, then gradually becoming sunny, with a high near 61. North northwest wind 6 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 61 °F

    Slight Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 39. East northeast wind 6 to 10 mph becoming north after midnight.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Northeast wind around 6 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39. North northeast wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

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

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of rain, mainly after 11am. Patchy fog before 9am. Otherwise, partly sunny, with a high near 61.

    High: 61 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

Detailed Forecast

Overnight
A chance of showers before 2am, then a slight chance of showers after 5am. Patchy fog before 1am. Otherwise, mostly cloudy, with a steady temperature around 45. Light and variable wind. Chance of precipitation is 40%.
Columbus Day
A 20 percent chance of showers before 8am. Partly sunny, then gradually becoming sunny, with a high near 61. North northwest wind 6 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Clear, with a low around 39. East northeast wind 6 to 10 mph becoming north after midnight.
Tuesday
Sunny, with a high near 65. Northeast wind around 6 mph.
Tuesday Night
Clear, with a low around 39. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
A chance of rain, mainly after 11am. Patchy fog before 9am. Otherwise, partly sunny, with a high near 61.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 46.
Friday
A chance of rain before 11am, then a slight chance of showers after 11am. Partly sunny, with a high near 64.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 44.
Saturday
A slight chance of rain. Partly sunny, with a high near 65.
Saturday Night
Rain likely. Mostly cloudy, with a low around 48.
Sunday
Rain. Cloudy, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Hillsboro OR
 45.52°N 123.01°W (Elev. 118 ft)
Last Update:
11:41 pm PDT Oct 12, 2025
Forecast Valid:
12am PDT Oct 13, 2025-6pm PDT Oct 19, 2025
 
Forecast Discussion
 
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Additional Resources

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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