Worst air pollution Corvallis, today and tomorrow
Today (15 July): Air quality in Corvallis is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 44.1/100).
Tomorrow (16 July 2026): Air quality in Corvallis is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (O3: 37.5/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Corvallis' air quality reflects the Willamette Valley's partial topographic enclosure between the Coast Range and the Cascades, with vehicle emissions from US-20 and Oregon State University campus contributing local sources. Winter wood-burning stoves generate localised PM2.5 under occasional temperature inversions, while summer wildfire smoke from Oregon and Washington forests is an increasingly severe and frequent seasonal concern and the valley position creates modest inversion risk during autumn and winter.
Today - 15 July | Pollution peaks at 06:00
AQI:
Medium
44.1/100
PM2.5 (fine particles):
Good
16.1/100
PM10 (coarse particles):
Good
7.9/100
NO2 (nitrogen dioxide):
Good
12.8/100
O3 (ozone):
Medium
44.1/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.0/100
PM1 (ultrafine particles):
Good
14.2/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 06:00
AQI:
Fair
37.5/100
PM2.5 (fine particles):
Good
11.6/100
PM10 (coarse particles):
Good
5.9/100
NO2 (nitrogen dioxide):
Good
9.7/100
O3 (ozone):
Fair
37.5/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
10.4/100
Pollen forecast in Corvallis
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Corvallis
Frequently Asked Questions
Is air quality bad in Corvallis right now?
On 15 July 2026, overall air quality in Corvallis is medium. AQI is the main air quality indicator at 44.1/100. Pollution peaks around 6:00 AM (O3: 44.1/100).
Will air quality be worse tomorrow in Corvallis?
On 16 July 2026, air quality conditions in Corvallis will be worse than today, with AQI forecast at fair at 37.5/100. Pollution peaks around 6:00 AM (O3: 37.5/100).
When is air pollution at its worst in Corvallis?
Corvallis sees air quality change through the year, as the wet winter and spring months are generally the cleanest, with regular rain limiting particulate buildup; by contrast, the driest weeks of late summer bring the greatest risk of smoke drifting in from regional wildfires. Coastal areas see relatively little of the smoke that can settle into inland valleys during fire season.
Are air quality levels in Corvallis based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app