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  4. Worcester County

Worcester County

Massachusetts

2026-08-20 16:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
109.3
PM10
μg/m³
11
PM2.5
μg/m³
5.7
CO
μg/m³
250
NO2
μg/m³
4.1
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
28℃
54%
15 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2
Places included
Ashburnham
AQI 10
Athol
AQI 23
Auburn
AQI 11
Barre Town
AQI 10
Berlin
AQI 11
Blackstone
AQI 11
Bolton
AQI 11
Boylston
AQI 11
Brookfield
AQI 11
Charlton
AQI 11
Clinton
AQI 11
Douglas
AQI 11
Dudley
AQI 11
East Brookfield
AQI 11
Fitchburg
AQI 29
Gardner
AQI 27
Grafton
AQI 11
Hardwick
AQI 25
Harvard
AQI 9
Holden
AQI 11
Hopedale
AQI 11
Hubbardston
AQI 11
Lancaster
AQI 11
Leicester
AQI 11
Leominster
AQI 11
Lunenburg
AQI 29
Mendon
AQI 11
Milford
AQI 11
Millbury
AQI 11
Millville
AQI 11
New Braintree
AQI 11
North Brookfield
AQI 11
Northborough
AQI 11
Northbridge
AQI 11
Oakham
AQI 11
Oxford
AQI 11
Paxton
AQI 11
Petersham
AQI 20
Phillipston
AQI 18
Princeton
AQI 11
Royalston
AQI 10
Rutland
AQI 11
Shrewsbury
AQI 11
Southborough
AQI 11
Southbridge
AQI 11
Spencer
AQI 11
Sterling
AQI 11
Sturbridge
AQI 11
Sutton
AQI 11
Templeton
AQI 20
Upton
AQI 11
Uxbridge
AQI 37
Warren
AQI 30
Webster
AQI 11
West Boylston
AQI 11
West Brookfield
AQI 11
Westborough
AQI 11
Westminster
AQI 29
Winchendon
AQI 10
Worcester
AQI 32
Data Sources
http://www.airnow.gov/

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Cities Nearby

Princeton
AQI 11
Holden
AQI 11
West Boylston
AQI 11
Sterling
AQI 11
Rutland
AQI 11
Paxton
AQI 11
Boylston
AQI 11
Hubbardston
AQI 11
Clinton
AQI 11
Leominster
AQI 11
Westminster
AQI 29