What is the air quality trend in Machesney Park?

Over the past 15 days, Machesney Park had an average AQI of 25 based on station measurements. The worst day was 2026-10-22 with AQI 35.

How is Machesney Park air quality measured?

Air quality in Machesney Park 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 Machesney Park, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

245h

PM2.5 Station

245h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-22	35	35–35	8.4 µg/m³	1h	1
2026-10-21	32	10–95	8.6 µg/m³	15h	1
2026-10-20	32	13–63	7.9 µg/m³	17h	1
2026-10-19	20	11–52	4.8 µg/m³	17h	1
2026-10-18	16	4–40	3.9 µg/m³	24h	1
2026-10-17	19	4–50	4.4 µg/m³	19h	1
2026-10-16	22	2–68	5.8 µg/m³	14h	1
2026-10-15	20	4–59	5.0 µg/m³	19h	1
2026-10-14	30	6–59	7.2 µg/m³	16h	1
2026-10-13	33	5–62	8.0 µg/m³	16h	1
2026-10-12	26	1–48	6.2 µg/m³	17h	1
2026-10-11	19	4–49	4.5 µg/m³	17h	1
2026-10-10	27	8–58	6.5 µg/m³	20h	1
2026-10-09	25	7–56	6.1 µg/m³	17h	1
2026-10-08	24	10–93	6.4 µg/m³	16h	1

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