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)
33
Good
Winchester, Kentucky
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.73 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.61 μg/m³
0
55
155
255
425
605+
36.47 ppb
0
55
71
86
201
201+
0.77 ppb
0
36
76
186
605
1005+
3.75 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Winchester, Kentucky
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AQI 35
Good
2.58μg/m³
PM2.5
11.03μg/m³
PM10
37.58ppb
O3
0.81ppb
SO2
4.55ppb
NO2
0.18ppm
CO
AQI 34
Good
2.88μg/m³
PM2.5
13.34μg/m³
PM10
36.56ppb
O3
0.70ppb
SO2
4.22ppb
NO2
0.17ppm
CO
AQI 36
Good
2.70μg/m³
PM2.5
11.01μg/m³
PM10
38.95ppb
O3
0.71ppb
SO2
4.95ppb
NO2
0.17ppm
CO
AQI 35
Good
2.70μg/m³
PM2.5
11.01μg/m³
PM10
38.03ppb
O3
0.68ppb
SO2
4.79ppb
NO2
0.17ppm
CO
AQI 36
Good
2.33μg/m³
PM2.5
10.84μg/m³
PM10
39.19ppb
O3
0.75ppb
SO2
5.03ppb
NO2
0.18ppm
CO
AQI 36
Good
3.17μg/m³
PM2.5
10.76μg/m³
PM10
38.51ppb
O3
0.68ppb
SO2
4.14ppb
NO2
0.17ppm
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 10:00:00 on 2026-06-14.
The best air quality in Winchester, Kentucky was recorded at 02:00:00 on 2026-06-15.
The real-time air quality index in Winchester, Kentucky is 33, currently categorized as Good.
The most common pollutant in Winchester, Kentucky is O3.
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 2.735 μg/m3.
The current PM10 levels in Winchester, Kentucky are 10.608 μg/m3.
The current carbon monoxide (CO) level in Winchester, Kentucky is 0.196 ppm.
The current sulfur dioxide (SO2) levels in Winchester, Kentucky are 0.771 ppb.
The current ozone (O3) levels at Winchester, Kentucky is 36.465 ppm.
The current nitrogen dioxide (NO2) levels at Winchester, Kentucky is 3.754 ppb.
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