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)
38
Good
Winchester, Kentucky
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.28 μg/m³
0
55
155
255
425
605+
18.76 ppb
0
55
71
86
201
201+
1.25 ppb
0
36
76
186
605
1005+
10.95 ppb
0
54
101
361
1250
2050+
0.45 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Winchester, Kentucky
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AQI 38
Good
6.63μg/m³
PM2.5
20.45μg/m³
PM10
14.07ppb
O3
1.05ppb
SO2
9.49ppb
NO2
0.32ppm
CO
AQI 33
Good
6.35μg/m³
PM2.5
16.23μg/m³
PM10
11.46ppb
O3
0.99ppb
SO2
9.36ppb
NO2
0.31ppm
CO
AQI 38
Good
7.28μg/m³
PM2.5
31.90μg/m³
PM10
14.32ppb
O3
0.99ppb
SO2
9.53ppb
NO2
0.31ppm
CO
AQI 38
Good
6.72μg/m³
PM2.5
30.04μg/m³
PM10
19.92ppb
O3
0.98ppb
SO2
9.48ppb
NO2
0.31ppm
CO
AQI 38
Good
6.58μg/m³
PM2.5
21.36μg/m³
PM10
15.28ppb
O3
1.00ppb
SO2
9.54ppb
NO2
0.31ppm
CO
AQI 33
Good
6.17μg/m³
PM2.5
25.92μg/m³
PM10
12.86ppb
O3
0.98ppb
SO2
9.31ppb
NO2
0.30ppm
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 03:00:00 on 2026-03-05.
The best air quality in Winchester, Kentucky was recorded at 03:00:00 on 2026-03-06.
The real-time air quality index in Winchester, Kentucky is 33, currently categorized as Good.
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 5.977 μg/m3.
The current PM10 levels in Winchester, Kentucky are 18.57 μg/m3.
The current carbon monoxide (CO) level in Winchester, Kentucky is 0.359 ppm.
The current sulfur dioxide (SO2) levels in Winchester, Kentucky are 1.112 ppb.
The current ozone (O3) levels at Winchester, Kentucky is 8.171 ppm.
The current nitrogen dioxide (NO2) levels at Winchester, Kentucky is 12.433 ppb.
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