What is the air quality trend in Matteson?

Over the past 8 days, Matteson had an average AQI of 99 based on station measurements. The worst day was 2026-07-17 with AQI 233.

How is Matteson air quality measured?

Air quality in Matteson 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 Matteson, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	30	28–33	7.3 µg/m³	2h	120
2026-07-21	63	32–98	18.4 µg/m³	24h	226
2026-07-20	99	71–106	34.5 µg/m³	24h	218
2026-07-19	111	61–160	40.6 µg/m³	24h	226
2026-07-18	50	26–88	12.9 µg/m³	24h	227
2026-07-17	233	68–359	179.2 µg/m³	24h	238
2026-07-16	151	52–325	98.0 µg/m³	24h	221
2026-07-15	57	52–140	15.0 µg/m³	22h	230

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