Real-time air quality index in Weston, Connecticut today
Stay updated with real-time air quality in Weston, 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)
44
Good
Weston, Connecticut
Last updated: ... (Local time)
Common air pollutants in Weston, Connecticut
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
7.93 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
27.83 μg/m³
0
55
155
255
425
605+
Ozone (O3)
26.32 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.28 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
3.92 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Weston, Connecticut
Weston, Connecticut
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Weston, Connecticut air quality map: Real-time AQI near you
Air quality in nearby cities
Wilton, Connecticut
AQI 38
Good
7.36μg/m³
PM2.5
17.45μg/m³
PM10
24.51ppb
O3
0.54ppb
SO2
3.09ppb
NO2
0.25ppm
CO
Westport, Connecticut
AQI 38
Good
7.03μg/m³
PM2.5
16.59μg/m³
PM10
24.38ppb
O3
0.53ppb
SO2
2.53ppb
NO2
0.25ppm
CO
Norwalk, Connecticut
AQI 38
Good
7.13μg/m³
PM2.5
18.46μg/m³
PM10
26.18ppb
O3
0.53ppb
SO2
3.01ppb
NO2
0.25ppm
CO
New Canaan, Connecticut
AQI 38
Good
7.32μg/m³
PM2.5
17.94μg/m³
PM10
24.61ppb
O3
0.55ppb
SO2
3.14ppb
NO2
0.26ppm
CO
Fairfield, Connecticut
AQI 38
Good
7.32μg/m³
PM2.5
16.39μg/m³
PM10
27.08ppb
O3
0.50ppb
SO2
3.30ppb
NO2
0.25ppm
CO
Lewisboro, New York
AQI 38
Good
7.37μg/m³
PM2.5
18.16μg/m³
PM10
24.58ppb
O3
0.55ppb
SO2
3.38ppb
NO2
0.25ppm
CO
How accurate is Connecticut, USA air quality data?
Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Frequently asked questions
How frequently is the air quality data for Weston, Connecticut updated?
Air quality data for Weston, Connecticut is updated on an hourly basis.
When did Weston, Connecticut experience the worst air quality in the last 24 hours?
The worst air quality in Weston, Connecticut was recorded at 07:00:00 on 2026-08-14.
When did Weston, Connecticut have its best air quality in the last 24 hours?
The best air quality in Weston, Connecticut was recorded at 05:00:00 on 2026-08-14.
What is the real-time air quality index for Weston, Connecticut?
The real-time air quality index in Weston, Connecticut is 44, currently categorized as Good.
Which pollutant is found most often in Weston, Connecticut?
The most common pollutant in Weston, Connecticut is PM2.5.
What can I do if the air quality in Weston, Connecticut is poor?
If the air quality in Weston, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Weston, Connecticut?
The measured PM2.5 levels in Weston, Connecticut at present are 7.926 μg/m3.
What are the current PM10 levels at Weston, Connecticut?
The current PM10 levels in Weston, Connecticut are 27.833 μg/m3.
What are the current carbon monoxide (CO) levels at Weston, Connecticut?
The current carbon monoxide (CO) level in Weston, Connecticut is 0.219 ppm.
What are the current sulfur dioxide (SO2) levels at Weston, Connecticut?
The current sulfur dioxide (SO2) levels in Weston, Connecticut are 0.275 ppb.
What are the current ozone (O3) levels at Weston, Connecticut?
The current ozone (O3) levels at Weston, Connecticut is 26.323 ppm.
What are the current nitrogen dioxide (NO2) levels at Weston, Connecticut?
The current nitrogen dioxide (NO2) levels at Weston, Connecticut is 3.925 ppb.
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