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Hazardous Weather Conditions
Current conditions at
Portland-Hillsboro Airport (KHIO)
Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.
Mostly Cloudy
37°F
3°C
| Humidity | 93% |
| Wind Speed | N 0 MPH |
| Barometer | 30.11 in (1019.64 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 16 Apr 12:35 AM PDT |
Extended Forecast for
4 Miles ENE Hillsboro OR
Frost Advisory April 16, 01:00am until April 16, 09:00am
Overnight

Low: 35 °F
Chance
ShowersThursday
High: 58 °F
Patchy Frost
and Patchy
Fog then
Mostly SunnyThursday Night

Low: 36 °F
Mostly Clear
then Patchy
FrostFriday
High: 62 °F
Patchy Frost
and Patchy
Fog then
Mostly SunnyFriday Night

Low: 40 °F
Mostly Cloudy
Saturday

High: 69 °F
Partly Sunny
Saturday Night

Low: 50 °F
Chance
ShowersSunday

High: 69 °F
Chance
ShowersSunday Night

Low: 49 °F
Chance Rain
Detailed Forecast
Overnight
A 40 percent chance of showers, mainly before 3am. Patchy frost after 4am. Snow level 1600 feet. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Thursday
Patchy fog before 9am. Patchy frost before 8am. Otherwise, mostly sunny, with a high near 58. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 36. West northwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 7am. Patchy frost before 7am. Otherwise, mostly sunny, with a high near 62. Calm wind.
Friday Night
Mostly cloudy, with a low around 40. Calm wind.
Saturday
Partly sunny, with a high near 69.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Mostly cloudy, with a high near 69.
Sunday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 49.
Monday
A chance of rain, mainly after 11am. Mostly cloudy, with a high near 70.
Monday Night
A chance of rain. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Mostly cloudy, with a high near 62.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 62.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles ENE Hillsboro OR
45.54°N 122.86°W (Elev. 200 ft)
45.54°N 122.86°W (Elev. 200 ft)
12:41 am PDT Apr 16, 2026
12am PDT Apr 16, 2026-6pm PDT Apr 22, 2026



