What is the air quality trend in Tewksbury?

Over the past 8 days, Tewksbury had an average AQI of 66 based on station measurements. The worst day was 2026-07-17 with AQI 126.

How is Tewksbury air quality measured?

Air quality in Tewksbury 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 Tewksbury, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	43	25–54	10.3 µg/m³	13.0	23h	8
2026-07-20	58	30–188	18.7 µg/m³	5.8	24h	9
2026-07-19	56	26–162	16.2 µg/m³	21.6	24h	10
2026-07-18	71	34–120	22.5 µg/m³	46.7	24h	8
2026-07-17	126	44–189	56.4 µg/m³	4.1	24h	10
2026-07-16	69	30–182	23.5 µg/m³	—	24h	8
2026-07-15	54	38–86	14.0 µg/m³	26.6	24h	8
2026-07-14	52	52–52	12.5 µg/m³	24.1	1h	6

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