Worst air pollution Oak Park, today and tomorrow
Today (16 July): Air quality in Oak Park is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 36.0/100).
Tomorrow (17 July 2026): Air quality in Oak Park is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 37.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Oak Park's air quality reflects the flat Illinois prairie immediately west of Chicago, with vehicle emissions from I-290 Eisenhower Expressway and the surrounding dense urban residential and commercial character contributing elevated NOₓ. The broader Chicago metropolitan regional ozone is the primary warm-season concern, while the flat terrain allows reasonable dispersal and Oak Park's dense inner-ring suburban character maintains consistently moderate vehicle emission levels throughout the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
36.0/100
PM2.5 (fine particles):
Good
11.3/100
PM10 (coarse particles):
Good
12.1/100
NO2 (nitrogen dioxide):
Good
2.4/100
O3 (ozone):
Fair
36.0/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Good
5.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
37.9/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Good
3.6/100
O3 (ozone):
Fair
37.9/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.3/100
PM1 (ultrafine particles):
Good
5.4/100
Pollen forecast in Oak Park
View pollen forecastFrequently Asked Questions
Is air quality bad in Oak Park right now?
On 16 July 2026, overall air quality in Oak Park is fair. AQI is the main air quality indicator at 36.0/100. Pollution peaks around 12:00 PM (O3: 36.0/100).
Will air quality be worse tomorrow in Oak Park?
On 17 July 2026, air quality conditions in Oak Park will be similar to today, with AQI forecast at fair at 37.9/100. Pollution peaks around 12:00 PM (O3: 37.9/100).
When is air pollution at its worst in Oak Park?
Seasonal changes shape air quality across Oak Park, as the cleanest stretches usually come in spring and fall, between the summer ozone season and the calmer winter pollution episodes; by contrast, prolonged summer heat waves are when air quality most often dips into unhealthy territory. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.
Are air quality levels in Oak Park 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