What is the air quality trend in Saint Matthews?

Over the past 7 days, Saint Matthews had an average AQI of 54 based on station measurements. The worst day was 2026-07-20 with AQI 65.

How is Saint Matthews air quality measured?

Air quality in Saint Matthews 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 Saint Matthews, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	62	23–174	19.8 µg/m³	23h	6
2026-07-20	65	38–106	18.9 µg/m³	24h	6
2026-07-19	48	20–86	12.5 µg/m³	24h	7
2026-07-18	61	23–118	17.8 µg/m³	24h	7
2026-07-17	51	25–133	13.9 µg/m³	24h	8
2026-07-16	49	23–131	13.7 µg/m³	24h	7
2026-07-15	42	23–85	10.9 µg/m³	24h	8

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