What is the air quality trend in Wheaton?

Over the past 15 days, Wheaton had an average AQI of 59 based on station measurements. The worst day was 2026-07-17 with AQI 167.

How is Wheaton air quality measured?

Air quality in Wheaton 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 Wheaton, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	23	20–26	5.5 µg/m³	4h	26
2026-07-21	52	27–73	14.1 µg/m³	24h	31
2026-07-20	68	57–79	20.2 µg/m³	24h	30
2026-07-19	66	36–151	19.8 µg/m³	24h	32
2026-07-18	129	57–160	49.9 µg/m³	24h	32
2026-07-17	167	77–212	97.4 µg/m³	24h	34
2026-07-16	68	53–146	20.1 µg/m³	24h	32
2026-07-15	51	37–66	12.8 µg/m³	24h	34
2026-07-14	40	32–51	9.6 µg/m³	24h	31
2026-07-13	36	24–42	8.5 µg/m³	24h	32
2026-07-12	41	29–48	9.9 µg/m³	24h	31
2026-07-11	42	23–52	10.1 µg/m³	24h	25
2026-07-10	44	26–62	11.1 µg/m³	24h	30
2026-07-09	34	26–41	8.2 µg/m³	24h	31
2026-07-08	36	25–45	8.6 µg/m³	20h	33

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