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Hazardous Weather Conditions
Current conditions at
Portland-Hillsboro Airport (KHIO)
Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.
Clear
25°F
-4°C
| Humidity | 100% |
| Wind Speed | W 3 MPH |
| Barometer | 30.22 in (1023.37 mb) |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Last update | 21 Jan 06:00 AM PST |
Extended Forecast for
Cedar Hills OR
Air Stagnation Advisory January 21, 06:25am until January 23, 12:00pm
NOW until 12:00pm Fri

Air Stagnation Advisory
Today

High: 47 °F
Frost then
SunnyTonight

Low: 29 °F
Frost
Thursday

High: 46 °F
Frost then
Partly SunnyThursday Night

Low: 29 °F
Frost
Friday

High: 47 °F
Frost then
SunnyFriday Night

Low: 28 °F
Clear then
FrostSaturday

High: 46 °F
Frost then
SunnySaturday Night

Low: 28 °F
Frost
Detailed Forecast
Today
Widespread frost before 7am. Otherwise, sunny, with a high near 47. East northeast wind 7 to 10 mph, with gusts as high as 22 mph.
Tonight
Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 29. North northeast wind 3 to 6 mph.
Thursday
Widespread frost before 10am. Otherwise, mostly sunny, with a high near 46. Northeast wind 3 to 5 mph.
Thursday Night
Widespread frost, mainly after 11pm. Otherwise, partly cloudy, with a low around 29. Calm wind.
Friday
Widespread frost, mainly before 10am. Otherwise, sunny, with a high near 47. Calm wind becoming northeast around 6 mph in the morning.
Friday Night
Widespread frost before 3am, then widespread frost after 5am. Otherwise, clear, with a low around 28.
Saturday
Widespread frost before 8am. Otherwise, sunny, with a high near 46.
Saturday Night
Widespread frost after 10pm. Otherwise, mostly clear, with a low around 28.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 45.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, mostly cloudy, with a low around 32.
Monday
A slight chance of rain. Partly sunny, with a high near 47.
Monday Night
Areas of frost. Otherwise, mostly cloudy, with a low around 34.
Tuesday
A slight chance of rain. Areas of frost. Otherwise, partly sunny, with a high near 52.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Cedar Hills OR
45.49°N 122.78°W (Elev. 364 ft)
45.49°N 122.78°W (Elev. 364 ft)
5:41 am PST Jan 21, 2026
6am PST Jan 21, 2026-6pm PST Jan 27, 2026



