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  2. United States
  3. Massachusetts
  4. Middlesex County

Middlesex County

Massachusetts

2026-04-21 14:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
94.3
PM10
μg/m³
9.4
PM2.5
μg/m³
3
NO2
μg/m³
0
Weather
  • ℃
  • ℉
8℃
33%
5 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
Places included
Acton
AQI 6
Arlington
AQI 11
Ashby
AQI 5
Ashland
AQI 5
Ayer
AQI 6
Bedford
AQI 11
Belmont
AQI 11
Billerica
AQI 11
Boxborough
AQI 6
Burlington
AQI 11
Cambridge
AQI 11
Carlisle
AQI 6
Chelmsford
AQI 40
Concord
AQI 11
Dracut
AQI 7
Dunstable
AQI 7
Everett
AQI 11
Framingham
AQI 5
Groton
AQI 6
Holliston
AQI 5
Hopkinton Township
AQI 5
Hudson CDP
AQI 6
Lexington
AQI 11
Lincoln
AQI 11
Littleton
AQI 6
Lowell
AQI 7
Malden
AQI 11
Marlborough
AQI 6
Maynard
AQI 6
Medford
AQI 11
Melrose
AQI 11
Natick
AQI 11
Newton
AQI 11
North Reading
AQI 11
Pepperell
AQI 7
Reading
AQI 11
Sherborn
AQI 11
Shirley
AQI 6
Somerville
AQI 11
Stoneham
AQI 11
Stow
AQI 6
Sudbury
AQI 11
Tewksbury
AQI 6
Townsend
AQI 5
Tyngsborough
AQI 7
Wakefield
AQI 11
Waltham
AQI 11
Watertown
AQI 11
Wayland
AQI 11
Westford
AQI 6
Weston
AQI 11
Wilmington
AQI 11
Winchester
AQI 11
Woburn
AQI 11
Data Sources
http://www.airnow.gov/

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Cities Nearby

Bedford
AQI 11
Lincoln
AQI 11
Concord
AQI 11
Lexington
AQI 11
Carlisle
AQI 6
Burlington
AQI 11
Billerica
AQI 11
Waltham
AQI 11
Woburn
AQI 11
Weston
AQI 11
Belmont
AQI 11