What is the air quality trend in Munster?

Over the past 14 days, Munster had an average AQI of 80 based on station measurements. The worst day was 2026-07-17 with AQI 234.

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
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	64	32–98	18.8 µg/m³	23h	247
2026-07-20	99	59–107	34.7 µg/m³	24h	249
2026-07-19	111	54–160	40.6 µg/m³	24h	260
2026-07-18	50	33–88	12.9 µg/m³	24h	260
2026-07-17	234	69–361	180.0 µg/m³	24h	274
2026-07-16	158	51–328	103.7 µg/m³	24h	254
2026-07-15	58	51–168	16.4 µg/m³	24h	265
2026-07-14	60	38–67	16.7 µg/m³	24h	259
2026-07-13	62	37–67	17.3 µg/m³	24h	264
2026-07-12	50	26–57	12.5 µg/m³	24h	252
2026-07-11	38	23–51	9.1 µg/m³	24h	209
2026-07-10	35	26–48	8.5 µg/m³	24h	254
2026-07-09	51	31–54	12.4 µg/m³	24h	266
2026-07-08	55	46–62	14.3 µg/m³	24h	277

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