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 23, 12:00 PM PST

Current conditions at

Eugene, Mahlon Sweet Field (KEUG)

Lat: 44.13333°NLon: 123.21444°WElev: 364.0ft.

Mostly Cloudy

40°F

4°C

Humidity	73%
Wind Speed	NNE 6 MPH
Barometer	30.19 in (1022.35 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	36°F (2°C)
Last update	20 Jan 02:54 PM PST

More Information:

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

Extended Forecast for

Mahlon Sweet Field OR

Air Stagnation Advisory January 20, 03:08pm until January 23, 12:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory January 20, 03:08pm until January 23, 12:00pm
NOW until 12:00pm Fri
Air Stagnation Advisory
This Afternoon
High: 47 °F
Partly Sunny
Tonight
Low: 26 °F
Frost and
Areas
Freezing Fog
Wednesday
High: 45 °F
Frost and
Dense
Freezing Fog
then Partly
Sunny
Wednesday Night
Low: 25 °F
Frost and
Dense
Freezing Fog
Thursday
High: 44 °F
Frost and
Dense
Freezing Fog
then Mostly
Sunny
Thursday Night
Low: 26 °F
Frost and
Dense
Freezing Fog
Friday
High: 45 °F
Frost and
Patchy Fog
then Sunny
Friday Night
Low: 23 °F
Frost

Detailed Forecast

This Afternoon

Partly sunny, with a high near 47. North wind around 6 mph.

Tonight

Patchy fog between 7pm and 9pm. Areas of freezing fog after 9pm. Widespread frost after 7pm. Otherwise, mostly cloudy, with a low around 26. Calm wind.

Wednesday

Widespread dense freezing fog, mainly before 8am. Widespread frost between 7am and noon. Otherwise, partly sunny, with a high near 45. Light north wind.

Wednesday Night

Widespread dense freezing fog. Widespread frost. Otherwise, partly cloudy, with a low around 25. Calm wind.

Thursday

Widespread dense freezing fog, mainly before 10am. Widespread frost, mainly before 11am. Otherwise, mostly sunny, with a high near 44. Calm wind.

Thursday Night

Patchy fog between 3am and 5am. Widespread dense freezing fog between 1am and 3am. Widespread frost, mainly after 7pm. Otherwise, partly cloudy, with a low around 26.

Friday

Patchy fog between 10am and 11am. Widespread frost, mainly before 11am. Otherwise, mostly sunny, with a high near 45.

Friday Night

Widespread frost. Otherwise, mostly clear, with a low around 23.

Saturday

Widespread frost before 11am. Otherwise, sunny, with a high near 44.

Saturday Night

Widespread frost, mainly after 7pm. Otherwise, partly cloudy, with a low around 24.

Sunday

Widespread frost. Otherwise, partly sunny, with a high near 47.

Sunday Night

A slight chance of rain. Mostly cloudy, with a low around 31.