Air Quality in Hartford, United States
Windy
27.5°C · 27.7% humidity
27.5°
Feels 27.5°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Hartford's air quality — share it
AQI Forecast
27
4pm
27
27
39
7pm
36
33
38
10pm
37
36
36
1am
35
35
35
4am
34
34
54
7am
54
25
25
10am
25
27
27
1pm
27
27
Air Quality Index Trend
46h · 5 stnHartford's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
27.7%
Humidity
51.4 km/h
Wind WNW
1010.1 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.4 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Hartford?
Temperature & Precipitation
PM2.5 Trend
46h · 5 stationsPM2.59.4 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
Station readings (2 stations within 25 km)
9.4
Median
8.15
Average
6.7
Low
9.6
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +3.5
What is the 7-day forecast for Hartford?
08-03
27.5° 18.5°
0.38 mm
08-04
38.1° 18.1°
0.88 mm
08-05
34.5° 21.0°
0.13 mm
08-06
29.4° 17.6°
1.13 mm
08-07
31.6° 19.9°
10.19 mm
08-08
29.4° 20.6°
4.31 mm
08-09
40.0° 23.0°
2.94 mm
Both models agree
Avg diff: 3.5°C
Where are air quality stations near Hartford?
30
Hartford, Connecticut, USA
34
Hartford, Connecticut, USA
33
Hartford, Connecticut, USA
30
East Hartford, Connecticut, USA
What cities are near Hartford?
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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 2026-08-07T23:59 UTC.