Current conditions at
Portland-Hillsboro Airport (KHIO)
Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.
Clear
63°F
17°C
| Humidity | 18% |
| Wind Speed | WSW 3 MPH |
| Barometer | 29.84 in (1010.5 mb) |
| Dewpoint | 19°F (-7°C) |
| Visibility | 10.00 mi |
| Last update | 25 May 12:15 AM PDT |
Extended Forecast for
3 Miles SW Hillsboro OR
Overnight
Low: 50 °F
Mostly Cloudy
Memorial Day
High: 63 °F
Chance Rain
then ShowersMonday Night
Low: 46 °F
Rain Likely
Tuesday
High: 65 °F
Slight Chance
Showers then
Chance
ShowersTuesday Night
Low: 45 °F
Slight Chance
Showers then
Partly CloudyWednesday
High: 72 °F
Partly Sunny
Wednesday Night
Low: 48 °F
Partly Cloudy
Thursday
High: 77 °F
Mostly Sunny
Thursday Night
Low: 50 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 50. Calm wind.
Memorial Day
Rain and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then rain likely and possibly a thunderstorm after 5pm. High near 63. Light south wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Rain likely, mainly between 1am and 2am. Mostly cloudy, with a low around 46. South wind 5 to 8 mph. Chance of precipitation is 70%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 65. Light and variable wind. Chance of precipitation is 50%.
Tuesday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 45. Northwest wind 5 to 8 mph becoming calm after midnight.
Wednesday
Partly sunny, with a high near 72.
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 before 11am. Partly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 71.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SW Hillsboro OR
45.5°N 123°W (Elev. 144 ft)
45.5°N 123°W (Elev. 144 ft)
11:41 pm PDT May 24, 2026
12am PDT May 25, 2026-6pm PDT May 31, 2026
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