Hartford, Connecticut, USA Air Quality

Monitoring Station · Hartford, United States
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
45 11pm
29
31
31 2am
31
31
31 5am
31
31
38 8am
38
38
38 11am
31
29
— 2pm
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—
— 5pm
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— 8pm
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CAMS model adj +4
25
25
27
27
27
27
27
27
27
34
34
34
34
27
25

Air Quality Forecast (24h)

PM2.510.8 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

19
Hartford, Connecticut, USA
0.0 km PM2.5: 4.6 µg/m³
34
Hartford, Connecticut, USA
0.0 km PM2.5: 8.2 µg/m³
45
East Hartford, Connecticut, USA
3.9 km PM2.5: 10.8 µg/m³

Nearby Cities

18 Hartford 26 East Hartford 22 Wethersfield 21 West Hartford 25 South Windsor 23 Glastonbury 23 Bloomfield 22 Newington 24 Windsor

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T02:18 UTC.