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Our annual climate summary for Portland has been posted. Additional summaries for Astoria, Eugene, and Salem are available. For other climate summaries, visit our Observed Weather tab on our climate page. Read More >
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 | 96% |
| Wind Speed | N 0 MPH |
| Barometer | 30.23 in (1023.71 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Last update | 20 Jan 05:53 AM PST |
Extended Forecast for
4 Miles E Farmington OR
Air Stagnation Advisory January 20, 06:03am until January 21, 04:00pm
NOW until 4:00pm Wed
Air Stagnation Advisory
Today
High: 48 °F
Frost then
SunnyTonight
Low: 31 °F
Partly Cloudy
Wednesday
High: 46 °F
Mostly Sunny
Wednesday Night
Low: 30 °F
Frost
Thursday
High: 45 °F
Frost then
Mostly SunnyThursday Night
Low: 33 °F
Frost
Friday
High: 46 °F
Frost then
SunnyFriday Night
Low: 31 °F
Frost
Detailed Forecast
Today
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 48. Light northeast wind becoming east northeast 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Tonight
Partly cloudy, with a low around 31. North northeast wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 46. East northeast wind 5 to 8 mph.
Wednesday Night
Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 30. Northeast wind 5 to 7 mph.
Thursday
Widespread frost, mainly before 10am. Otherwise, mostly sunny, with a high near 45. Calm wind.
Thursday Night
Widespread frost, mainly after 11pm. Otherwise, partly cloudy, with a low around 33.
Friday
Widespread frost, mainly before 9am. Otherwise, mostly sunny, with a high near 46.
Friday Night
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 31.
Saturday
Widespread frost, mainly before 10am. Otherwise, mostly sunny, with a high near 46.
Saturday Night
A slight chance of rain after 10pm, mixing with snow after 1am. Areas of frost between 9pm and 10pm. Otherwise, mostly cloudy, with a low around 32.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 45.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 37.
Monday
A chance of rain. Mostly cloudy, with a high near 51.
Additional Forecasts and Information
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Forecast AreaABOUT 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)
5:41 am PST Jan 20, 2026
6am PST Jan 20, 2026-6pm PST Jan 26, 2026
Additional Resources
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Hourly Weather Forecast
