Stay updated with real-time air quality in Wilton, 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)
28
Good
Wilton, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.21 μg/m³
0
55
155
255
425
605+
29.90 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
11.02 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Wilton, Connecticut
Wilton, Connecticut
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AQI 56
Moderate
11.90μg/m³
PM2.5
31.07μg/m³
PM10
11.56ppb
O3
0.18ppb
SO2
16.77ppb
NO2
0.34ppm
CO
AQI 49
Good
9.06μg/m³
PM2.5
45.82μg/m³
PM10
6.13ppb
O3
0.18ppb
SO2
18.93ppb
NO2
0.30ppm
CO
AQI 69
Moderate
18.81μg/m³
PM2.5
38.58μg/m³
PM10
5.23ppb
O3
0.19ppb
SO2
17.94ppb
NO2
0.29ppm
CO
AQI 52
Moderate
9.76μg/m³
PM2.5
32.07μg/m³
PM10
12.25ppb
O3
0.19ppb
SO2
16.54ppb
NO2
0.34ppm
CO
AQI 54
Moderate
10.63μg/m³
PM2.5
32.07μg/m³
PM10
12.01ppb
O3
0.19ppb
SO2
16.45ppb
NO2
0.34ppm
CO
AQI 67
Moderate
17.96μg/m³
PM2.5
42.47μg/m³
PM10
7.56ppb
O3
0.17ppb
SO2
20.29ppb
NO2
0.33ppm
CO
The air quality data for Connecticut, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Wilton, Connecticut are available every hour.
Wilton, Connecticut experienced its worst air quality at 05:00:00, 2025-11-03.
The best air quality in Wilton, Connecticut was observed at 06:00:00 on 2025-11-02.
The air quality in Wilton, Connecticut right now is Moderate, with an AQI of 52.
In Wilton, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in Wilton, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Wilton, Connecticut currently has a PM2.5 concentration of 9.853 μg/m3.
Wilton, Connecticut currently has a PM10 concentration of 45.722 μg/m3.
The current carbon monoxide (CO) level in Wilton, Connecticut is 0.283 ppm.
The current sulfur dioxide (SO2) concentration in Wilton, Connecticut is 0.284 ppb.
Wilton, Connecticut currently has an ozone (O3) concentration of 11.129 ppm.
The current level of nitrogen dioxide (NO2) in Wilton, Connecticut is 26.853 ppb.
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