Air Quality in Hartford, United States

Drizzle
20.0°C · 46.0% humidity
20.0°
Feels 20.0°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
25 2pm
25
25
18 5pm
20
21
22 8pm
23
24
24 11pm
24
25
25 2am
24
24
24 5am
24
24
24 8am
24
24
24 11am
24
24
AD 728×90

Air Quality Index Trend

46h · 1 stn

Hartford's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

46.0%
Humidity
19.4 km/h
Wind WNW
1018.9 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
18
4.15 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Hartford?

Temperature & Precipitation

PM2.5 Trend

46h · 1 station
PM2.54.15 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250

What is the 7-day forecast for Hartford?

05-28
23.6° 18.9°
0.31 mm
05-29
20.0° 10.7°
0.5 mm
05-30
23.9° 9.6°
2.94 mm
05-31
28.5° 11.0°
06-01
26.8° 10.8°
06-02
19.1° 11.7°
0.13 mm
06-03
28.1° 15.2°
0.13 mm
Both models agree Avg diff: 4.2°C

Where are air quality stations near Hartford?

17
Hartford, Connecticut, USA
1.4 km PM2.5: 4.1 µg/m³
38
Hartford, Connecticut, USA
1.4 km PM2.5: 9.1 µg/m³
23
Hartford, Connecticut, USA
1.4 km PM2.5: 5.5 µg/m³
40
East Hartford, Connecticut, USA
5.2 km PM2.5: 9.6 µg/m³

What cities are near Hartford?

18 West Hartford 18 Wethersfield 17 East Hartford 17 Bloomfield 18 Newington 16 South Windsor 18 Glastonbury 15 Windsor 19 Farmington 19 New Britain
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T21:47 UTC.