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  4. St. Clair County
  5. Port Huron

Port Huron

St. Clair County, Michigan

2026-04-21 17:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
102.9
PM2.5
μg/m³
6.4
SO2
μg/m³
2
Weather
  • ℃
  • ℉
14℃
47%
32 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM2.5
  • SO2
Places included
PORT HURON
AQI 43
Data Sources
http://www.airnow.gov/

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