Stay updated with real-time air quality in Windham, Connecticut featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
32
Good
Windham, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.39 μg/m³
0
55
155
255
425
605+
35.36 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
8.15 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Windham, Connecticut
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AQI 33
Good
2.92μg/m³
PM2.5
14.60μg/m³
PM10
35.79ppb
O3
0.22ppb
SO2
6.86ppb
NO2
0.19ppm
CO
AQI 32
Good
2.78μg/m³
PM2.5
15.74μg/m³
PM10
35.20ppb
O3
0.22ppb
SO2
7.74ppb
NO2
0.18ppm
CO
AQI 31
Good
2.67μg/m³
PM2.5
10.32μg/m³
PM10
33.53ppb
O3
0.23ppb
SO2
7.60ppb
NO2
0.20ppm
CO
AQI 32
Good
3.02μg/m³
PM2.5
15.50μg/m³
PM10
35.17ppb
O3
0.22ppb
SO2
7.67ppb
NO2
0.17ppm
CO
AQI 31
Good
2.63μg/m³
PM2.5
10.26μg/m³
PM10
34.29ppb
O3
0.23ppb
SO2
7.48ppb
NO2
0.20ppm
CO
AQI 32
Good
2.67μg/m³
PM2.5
11.28μg/m³
PM10
35.10ppb
O3
0.23ppb
SO2
7.73ppb
NO2
0.20ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Windham, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Windham, Connecticut was at its worst at 01:00:00 on 2026-03-06.
In the last 24 hours, the best air quality in Windham, Connecticut was observed at 05:00:00 on 2026-03-06.
As of now, the AQI in Windham, Connecticut is 32, indicating Good conditions.
Windham, Connecticut air has the highest levels of O3.
Poor air quality in Windham, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Windham, Connecticut are currently 3.209 μg/m3.
The PM10 concentration in Windham, Connecticut is 12.392 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Windham, Connecticut is 0.194 ppm.
Currently, Windham, Connecticut has a sulfur dioxide (SO2) concentration of 0.183 ppb.
The current ozone (O3) level in Windham, Connecticut at the moment is 35.36 ppm.
Nitrogen dioxide (NO2) level in Windham, Connecticut at the moment is 8.148 ppb.
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