Thunder Bay, Ontario, Canada

Monitoring Station · Thunder Bay, Canada
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
25 3am
30
25
25 6am
25
12
12 9am
12
12
25 12pm
37
37
25 3pm
25
—
— 6pm
—
—
— 9pm
—
—
— 12am
—
—

Air Quality Trend (24h)

View city history →

Nearby Monitoring Stations

28
Thunder Bay, Ontario, Canada
0.0 km
35
Thunder Bay, Ontario, Canada
0.0 km
30
Thunder Bay, Ontario, Canada
0.0 km
33
Thunder Bay, Ontario, Canada
0.0 km

Nearby Cities

31 Thunder Bay 12 Marquette 18 Duluth 18 Superior 25 Hibbing

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-11T06:02 UTC.