What is the air quality trend in Oak Lawn?

Over the past 3 days, Oak Lawn had an average AQI of 27 based on station measurements. The worst day was 2026-05-27 with AQI 30.

How is Oak Lawn air quality measured?

Air quality in Oak Lawn is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Oak Lawn, United States

Name: Oak Lawn Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Oak Lawn, United States.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

46h

PM2.5 Station

46h · 8 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	24	18–35	5.7 µg/m³	19h	265
2026-05-28	28	22–39	6.7 µg/m³	24h	257
2026-05-27	30	30–30	7.2 µg/m³	3h	277

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