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)
32
Good
Wilton, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.33 μg/m³
0
55
155
255
425
605+
35.24 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
2.01 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Wilton, Connecticut
Wilton, Connecticut
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AQI 35
Good
2.58μg/m³
PM2.5
8.42μg/m³
PM10
38.39ppb
O3
0.51ppb
SO2
1.14ppb
NO2
0.16ppm
CO
AQI 31
Good
2.54μg/m³
PM2.5
8.72μg/m³
PM10
34.22ppb
O3
0.61ppb
SO2
2.03ppb
NO2
0.16ppm
CO
AQI 32
Good
2.50μg/m³
PM2.5
9.05μg/m³
PM10
34.99ppb
O3
0.60ppb
SO2
2.17ppb
NO2
0.15ppm
CO
AQI 36
Good
2.56μg/m³
PM2.5
8.95μg/m³
PM10
38.95ppb
O3
0.57ppb
SO2
1.10ppb
NO2
0.16ppm
CO
AQI 36
Good
2.58μg/m³
PM2.5
8.78μg/m³
PM10
38.75ppb
O3
0.54ppb
SO2
1.11ppb
NO2
0.16ppm
CO
AQI 32
Good
2.48μg/m³
PM2.5
9.07μg/m³
PM10
34.95ppb
O3
0.58ppb
SO2
1.96ppb
NO2
0.15ppm
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 09:00:00, 2026-06-14.
The best air quality in Wilton, Connecticut was observed at 07:00:00 on 2026-06-15.
The air quality in Wilton, Connecticut right now is Good, with an AQI of 32.
In Wilton, Connecticut, O3 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 2.457 μg/m3.
Wilton, Connecticut currently has a PM10 concentration of 8.331 μg/m3.
The current carbon monoxide (CO) level in Wilton, Connecticut is 0.157 ppm.
The current sulfur dioxide (SO2) concentration in Wilton, Connecticut is 0.62 ppb.
Wilton, Connecticut currently has an ozone (O3) concentration of 35.238 ppm.
The current level of nitrogen dioxide (NO2) in Wilton, Connecticut is 2.008 ppb.
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