What is the air quality trend in Wheaton?

Over the past 8 days, Wheaton had an average AQI of 31 based on station measurements. The worst day was 2026-10-21 with AQI 54.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 278 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	54	52–55	13.2 µg/m³	7.5	2h	280
2026-10-20	51	18–70	13.4 µg/m³	1.1	24h	245
2026-10-19	28	21–41	6.7 µg/m³	3.4	24h	280
2026-10-18	23	18–35	5.5 µg/m³	—	24h	257
2026-10-17	16	13–23	3.9 µg/m³	4.5	24h	278
2026-10-16	19	10–40	4.6 µg/m³	1.1	24h	267
2026-10-15	24	14–41	5.7 µg/m³	1.6	24h	279
2026-10-14	36	18–52	8.7 µg/m³	1.3	20h	279

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