What is the air quality trend in Munster?

Over the past 8 days, Munster had an average AQI of 31 based on station measurements. The worst day was 2026-10-21 with AQI 55.

How is Munster air quality measured?

Air quality in Munster 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 Munster, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 275 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	55	52–58	14.0 µg/m³	7.1	4h	277
2026-10-20	51	29–71	13.5 µg/m³	1.1	24h	243
2026-10-19	28	22–41	6.7 µg/m³	3.4	24h	277
2026-10-18	23	18–35	5.5 µg/m³	—	24h	255
2026-10-17	16	13–23	3.9 µg/m³	4.5	24h	277
2026-10-16	19	11–40	4.6 µg/m³	1.1	24h	265
2026-10-15	24	14–41	5.7 µg/m³	1.6	24h	276
2026-10-14	35	18–52	8.3 µg/m³	1.5	17h	275

Back to Munster Air Quality