Grand Portage, Minnesota, USA Air Quality

Monitoring Station · Thunder Bay, Canada
33
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
66 8pm
95
158
173 11pm
173
186
173 2am
173
158
96 5am
95
78
66 8am
66
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CAMS model adj +12
54
83
146
161
161
174
161
161
146
84
83
66
54
54

Air Quality Forecast (24h)

PM2.57.9 µg/m³ ✓ WHO
Good
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Nearby Cities

30 Thunder Bay 22 Duluth 23 Superior 25 Marquette 13 Hibbing 48 Forest Lake 48 Elk River 48 Otsego

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T23:12 UTC.