Stay updated with real-time air quality in Winchester, Kentucky 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)
54
Moderate
Winchester, Kentucky
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.79 μg/m³
0
55
155
255
425
605+
33.25 ppb
0
55
71
86
201
201+
0.94 ppb
0
36
76
186
605
1005+
3.10 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Winchester, Kentucky
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AQI 56
Moderate
12.11μg/m³
PM2.5
42.46μg/m³
PM10
32.52ppb
O3
0.96ppb
SO2
3.84ppb
NO2
0.23ppm
CO
AQI 52
Moderate
10.11μg/m³
PM2.5
38.32μg/m³
PM10
32.09ppb
O3
0.90ppb
SO2
3.06ppb
NO2
0.22ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
41.99μg/m³
PM10
33.04ppb
O3
0.90ppb
SO2
3.23ppb
NO2
0.25ppm
CO
AQI 49
Good
9.30μg/m³
PM2.5
41.99μg/m³
PM10
33.97ppb
O3
0.87ppb
SO2
3.17ppb
NO2
0.24ppm
CO
AQI 52
Moderate
10.22μg/m³
PM2.5
38.88μg/m³
PM10
32.65ppb
O3
0.92ppb
SO2
3.18ppb
NO2
0.25ppm
CO
AQI 52
Moderate
9.96μg/m³
PM2.5
39.21μg/m³
PM10
27.84ppb
O3
0.88ppb
SO2
6.13ppb
NO2
0.22ppm
CO
Air quality measurements for Kentucky, 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
Air quality data for Winchester, Kentucky is updated on an hourly basis.
The worst air quality in Winchester, Kentucky was recorded at 12:00:00 on 2026-06-07.
The best air quality in Winchester, Kentucky was recorded at 04:00:00 on 2026-06-08.
The real-time air quality index in Winchester, Kentucky is 54, currently categorized as Moderate.
The most common pollutant in Winchester, Kentucky is PM2.5.
If the air quality in Winchester, Kentucky is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Winchester, Kentucky at present are 11.145 μg/m3.
The current PM10 levels in Winchester, Kentucky are 42.793 μg/m3.
The current carbon monoxide (CO) level in Winchester, Kentucky is 0.221 ppm.
The current sulfur dioxide (SO2) levels in Winchester, Kentucky are 0.936 ppb.
The current ozone (O3) levels at Winchester, Kentucky is 33.246 ppm.
The current nitrogen dioxide (NO2) levels at Winchester, Kentucky is 3.103 ppb.
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