What is the air quality trend in Michigan City?

Over the past 8 days, Michigan City had an average AQI of 89 based on station measurements. The worst day was 2026-07-16 with AQI 172.

How is Michigan City air quality measured?

Air quality in Michigan City 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 Michigan City, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

151h

PM2.5 Station

151h · 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	64	39–119	18.7 µg/m³	17h	3
2026-07-20	70	10–111	21.5 µg/m³	21h	3
2026-07-19	59	30–103	17.0 µg/m³	20h	3
2026-07-18	63	18–176	21.3 µg/m³	21h	2
2026-07-17	152	16–500	112.9 µg/m³	24h	3
2026-07-16	172	26–372	117.8 µg/m³	24h	3
2026-07-15	98	26–259	55.7 µg/m³	23h	3
2026-07-14	37	37–37	8.8 µg/m³	1h	5

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