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St. Catharines

Niagara Regional Municipality

2025-12-06 16:00
AQI (US)
Moderate
Pollutants
PM2.5
μg/m³
35
O3
μg/m³
51.4
NO2
μg/m³
10.3
Weather
  • ℃
  • ℉
2℃
76%
35 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • O3
  • NO2
Places included
Saint Catharines
AQI 100
Data Sources
http://www.airnow.gov/

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Cities Nearby

Saint Catharines
AQI 100
Thorold
AQI 100
Niagara Falls
AQI 100
Niagara-on-the-Lake
AQI 100
Lewiston
AQI 100
Niagara Falls
AQI 100
Youngstown
AQI 100
Welland
AQI 100
Lincoln
AQI 100
Ransomville
AQI 100
Port Colborne
AQI 62