What is the air quality trend in Matteson?

Over the past 3 days, Matteson had an average AQI of 44 based on station measurements. The worst day was 2026-10-20 with AQI 52.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

45h

PM2.5 Station

45h · 241 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	52	52–52	12.8 µg/m³	22.1	1h	241
2026-10-20	52	25–72	13.8 µg/m³	1.1	24h	212
2026-10-19	29	22–41	6.9 µg/m³	3.4	20h	241

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