Want to revisit 2025? Here's our year-end climate summary!

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

Air Stagnation Advisory until January 21, 04:00 PM PST

Current conditions at

Corvallis, Corvallis Municipal Airport (KCVO)

Lat: 44.5°NLon: 123.28333°WElev: 246.0ft.

Clear

32°F

0°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	30.28 in (1025.4 mb)
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Last update	18 Jan 08:20 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Corvallis OR

Air Stagnation Advisory January 18, 08:42pm until January 21, 04:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory January 18, 08:42pm until January 21, 04:00pm
NOW until 4:00pm Wed
Air Stagnation Advisory
Tonight
Low: 29 °F
Frost
M.L.King Day
High: 49 °F
Frost and
Dense
Freezing Fog
then Sunny
Monday Night
Low: 29 °F
Frost then
Frost and
Dense
Freezing Fog
Tuesday
High: 49 °F
Frost and
Dense
Freezing Fog
then Mostly
Sunny
Tuesday Night
Low: 29 °F
Frost and
Dense
Freezing Fog
Wednesday
High: 47 °F
Frost and
Patchy Fog
then Partly
Sunny
Wednesday Night
Low: 31 °F
Frost
Thursday
High: 48 °F
Frost then
Partly Sunny

Detailed Forecast

Tonight

Widespread frost, mainly after 11pm. Otherwise, clear, with a low around 29. Calm wind.

M.L.King Day

Widespread dense freezing fog before 9am. Widespread frost, mainly before 10am. Otherwise, sunny, with a high near 49. Light north northeast wind.

Monday Night

Widespread dense freezing fog before 3am, then widespread dense freezing fog after 4am. Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 29. Calm wind.

Tuesday

Widespread dense freezing fog before 8am. Widespread frost, mainly before 10am. Otherwise, mostly sunny, with a high near 49. Calm wind.

Tuesday Night

Areas of fog before 2am, then areas of fog after 4am. Widespread dense freezing fog after 2am. Widespread frost, mainly after 11pm. Otherwise, partly cloudy, with a low around 29. Calm wind.

Wednesday

Patchy fog between 9am and 10am. Widespread frost, mainly before 10am. Otherwise, partly sunny, with a high near 47.

Wednesday Night

Widespread frost, mainly after 1am. Otherwise, mostly cloudy, with a low around 31.

Thursday

Widespread frost before 7am. Otherwise, partly sunny, with a high near 48.

Thursday Night

A chance of rain after 10pm. Mostly cloudy, with a low around 35.

Friday

A chance of rain. Mostly cloudy, with a high near 48.

Friday Night

A chance of rain. Mostly cloudy, with a low around 35.