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Hazardous Weather Conditions
Current conditions at
Portland-Hillsboro Airport (KHIO)
Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.
Clear
27°F
-3°C
| Humidity | 92% |
| Wind Speed | NW 3 MPH |
| Barometer | 30.22 in (1023.37 mb) |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Last update | 21 Jan 09:20 PM PST |
Extended Forecast for
4 Miles E Farmington OR
Air Stagnation Advisory January 21, 09:32pm until January 23, 12:00pm
Cold Weather Advisory January 22, 12:00am until January 22, 10:00am
NOW until 12:00pm Fri

Air Stagnation Advisory
Tonight

Low: 30 °F
Frost
Thursday

High: 42 °F
Frost then
Mostly CloudyThursday Night

Low: 30 °F
Frost
Friday

High: 45 °F
Frost then
SunnyFriday Night

Low: 27 °F
Clear then
FrostSaturday

High: 45 °F
Frost then
SunnySaturday Night

Low: 27 °F
Mostly Clear
Sunday

High: 43 °F
Partly Sunny
Detailed Forecast
Tonight
Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 30. Northeast wind 5 to 9 mph becoming light north after midnight.
Thursday
Widespread frost, mainly before 10am. Otherwise, increasing clouds, with a high near 42. Calm wind becoming east northeast around 5 mph.
Thursday Night
Widespread frost before 4am. Otherwise, partly cloudy, with a low around 30. Northeast wind 3 to 5 mph.
Friday
Widespread frost, mainly before 10am. Otherwise, sunny, with a high near 45. Northeast wind 5 to 7 mph.
Friday Night
Widespread frost after 5am. Otherwise, clear, with a low around 27. North northeast wind 6 to 8 mph.
Saturday
Widespread frost between 7am and 8am. Otherwise, sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Partly sunny, with a high near 43.
Sunday Night
A slight chance of rain and snow after 4am. Snow level 2200 feet. Mostly cloudy, with a low around 32.
Monday
A slight chance of rain and snow before 10am. Partly sunny, with a high near 46.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain. Mostly cloudy, with a high near 48.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles E Farmington OR
45.45°N 122.87°W (Elev. 600 ft)
45.45°N 122.87°W (Elev. 600 ft)
9:13 pm PST Jan 21, 2026
9pm PST Jan 21, 2026-6pm PST Jan 28, 2026



