What is the air quality trend in Buffalo Grove?

Over the past 11 days, Buffalo Grove had an average AQI of 31 based on station measurements. The worst day was 2026-07-16 with AQI 88.

How is Buffalo Grove air quality measured?

Air quality in Buffalo Grove 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 Buffalo Grove, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

159h

PM2.5 Station

159h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	13	1–39	3.2 µg/m³	20h	2
2026-07-20	35	22–51	8.3 µg/m³	24h	2
2026-07-19	52	21–79	13.9 µg/m³	24h	2
2026-07-18	13	3–27	3.0 µg/m³	18h	1
2026-07-17	83	13–127	28.1 µg/m³	24h	2
2026-07-16	88	5–130	29.7 µg/m³	21h	2
2026-07-07	12	4–23	2.9 µg/m³	4h	1
2026-07-06	14	4–33	3.3 µg/m³	4h	16
2026-07-05	7	4–12	1.8 µg/m³	17h	1
2026-07-03	2	2–2	0.4 µg/m³	1h	1
2026-07-02	32	29–35	7.7 µg/m³	2h	30

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