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Hazardous Weather Conditions
Current conditions at
Portland-Hillsboro Airport (KHIO)
Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.
Clear
30°F
-1°C
| Humidity | 92% |
| Wind Speed | NW 3 MPH |
| Barometer | 30.22 in (1023.37 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Last update | 20 Jan 09:35 PM PST |
Extended Forecast for
3 Miles WSW Cedar Hills OR
Air Stagnation Advisory January 20, 09:54pm until January 23, 12:00pm
NOW until 12:00pm Fri

Air Stagnation Advisory
Tonight

Low: 27 °F
Partly Cloudy
then FrostWednesday

High: 49 °F
Frost then
SunnyWednesday Night

Low: 26 °F
Frost
Thursday

High: 46 °F
Frost then
Mostly SunnyThursday Night

Low: 27 °F
Frost
Friday

High: 48 °F
Frost then
SunnyFriday Night

Low: 28 °F
Frost
Saturday

High: 47 °F
Frost then
Sunny
Detailed Forecast
Tonight
Widespread frost after 5am. Otherwise, partly cloudy, with a low around 27. North wind 5 to 7 mph.
Wednesday
Widespread frost before 10am. Otherwise, mostly sunny, with a high near 49. North wind 3 to 5 mph.
Wednesday Night
Widespread frost, mainly after 9pm. Otherwise, mostly clear, with a low around 26. North wind 3 to 5 mph.
Thursday
Widespread frost, mainly before 11am. Otherwise, mostly sunny, with a high near 46. Calm wind becoming northeast around 6 mph in the afternoon.
Thursday Night
Widespread frost, mainly after 9pm. Otherwise, partly cloudy, with a low around 27. Calm wind.
Friday
Widespread frost, mainly before 10am. Otherwise, sunny, with a high near 48.
Friday Night
Widespread frost after 11pm. Otherwise, clear, with a low around 28.
Saturday
Widespread frost before 10am. Otherwise, sunny, with a high near 47.
Saturday Night
Widespread frost, mainly after 9pm. Otherwise, partly cloudy, with a low around 28.
Sunday
A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Widespread frost before 10am. Snow level 1400 feet rising to 2400 feet in the afternoon. Otherwise, mostly sunny, with a high near 45.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 34.
Monday
A chance of rain. Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Partly sunny, with a high near 51.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Cedar Hills OR
45.5°N 122.88°W (Elev. 200 ft)
45.5°N 122.88°W (Elev. 200 ft)
9:45 pm PST Jan 20, 2026
9pm PST Jan 20, 2026-6pm PST Jan 27, 2026



