Current conditions at
Portland-Hillsboro Airport (KHIO)
Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.
Clear
64°F
18°C
| Humidity | 48% |
| Wind Speed | S 3 MPH |
| Barometer | 29.99 in (1015.58 mb) |
| Dewpoint | 44°F (7°C) |
| Visibility | 10.00 mi |
| Last update | 24 May 11:35 AM PDT |
Extended Forecast for
Hillsboro OR
Today

High: 77 °F
Sunny
Tonight

Low: 50 °F
Increasing
CloudsMemorial Day
High: 63 °F
Chance Rain
then ShowersMonday Night

Low: 45 °F
Showers
LikelyTuesday

High: 65 °F
Showers
LikelyTuesday Night
Low: 44 °F
Chance
Showers then
Partly CloudyWednesday

High: 71 °F
Partly Sunny
Wednesday Night

Low: 48 °F
Partly Cloudy
Thursday

High: 77 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 77. Calm wind.
Tonight
Increasing clouds, with a low around 50. Light and variable wind.
Memorial Day
Rain and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of rain and thunderstorms after 5pm. High near 63. South wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of rain before 7pm, then showers likely, mainly after 11pm. Mostly cloudy, with a low around 45. South wind 9 to 11 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 65. South wind 5 to 8 mph becoming calm in the morning. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Partly cloudy, with a low around 44. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A slight chance of rain. Partly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 67.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Hillsboro OR
45.55°N 122.96°W (Elev. 194 ft)
45.55°N 122.96°W (Elev. 194 ft)
11:41 am PDT May 24, 2026
11am PDT May 24, 2026-6pm PDT May 30, 2026


