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)
62
Moderate
Windham, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.18 μg/m³
0
55
155
255
425
605+
8.04 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
20.11 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Windham, Connecticut
Windham, Connecticut
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AQI 44
Good
8.11μg/m³
PM2.5
38.63μg/m³
PM10
26.68ppb
O3
0.29ppb
SO2
23.27ppb
NO2
0.51ppm
CO
AQI 54
Moderate
11.30μg/m³
PM2.5
48.00μg/m³
PM10
20.68ppb
O3
0.28ppb
SO2
27.62ppb
NO2
0.51ppm
CO
AQI 56
Moderate
11.75μg/m³
PM2.5
47.76μg/m³
PM10
24.10ppb
O3
0.39ppb
SO2
18.42ppb
NO2
0.52ppm
CO
AQI 66
Moderate
14.50μg/m³
PM2.5
85.35μg/m³
PM10
8.59ppb
O3
0.24ppb
SO2
26.03ppb
NO2
0.48ppm
CO
AQI 44
Good
7.91μg/m³
PM2.5
27.23μg/m³
PM10
15.58ppb
O3
0.39ppb
SO2
21.69ppb
NO2
0.53ppm
CO
AQI 64
Moderate
15.48μg/m³
PM2.5
81.86μg/m³
PM10
19.04ppb
O3
0.34ppb
SO2
18.57ppb
NO2
0.51ppm
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 07:00:00 on 2025-12-28.
In the last 24 hours, the best air quality in Windham, Connecticut was observed at 10:00:00 on 2025-12-28.
As of now, the AQI in Windham, Connecticut is 62, indicating Moderate conditions.
Windham, Connecticut air has the highest levels of PM2.5.
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 14.83 μg/m3.
The PM10 concentration in Windham, Connecticut is 39.181 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Windham, Connecticut is 0.4 ppm.
Currently, Windham, Connecticut has a sulfur dioxide (SO2) concentration of 0.378 ppb.
The current ozone (O3) level in Windham, Connecticut at the moment is 8.045 ppm.
Nitrogen dioxide (NO2) level in Windham, Connecticut at the moment is 20.115 ppb.
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