Hourly Weather | Today Monday, September 21, 2026
Lexington, Kentucky
3 PM
Cloudy Weather
88°
Feels Like 91°
26
Humidity: 51%
UV Index: 4
Wind: 6 mph
4 PM
Cloudy Weather
88°
Feels Like 91°
32
Humidity: 53%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
84°
Feels Like 88°
49
Humidity: 58%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
81°
Feels Like 82°
49
Humidity: 65%
UV Index: 1
Wind: 8 mph
7 PM
Sunny with a Chance of Thunderstorms
77°
Feels Like 75°
70
Humidity: 76%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Weather
75°
Feels Like 75°
40
Humidity: 80%
UV Index: 0
Wind: 9 mph
9 PM
Cloudy Weather
72°
Feels Like 73°
34
Humidity: 86%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Weather
70°
Feels Like 70°
39
Humidity: 90%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
68°
Feels Like 68°
49
Humidity: 92%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.03 µg/m³
  • PM10: 7.66 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.16 µg/m³
  • PM10: 7.78 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.65 µg/m³
  • PM10: 8.22 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.31 µg/m³
  • PM10: 8.85 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.12 µg/m³
  • PM10: 9.71 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.51 µg/m³
  • PM10: 10.14 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.22 µg/m³
  • PM10: 9.82 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.95 µg/m³
  • PM10: 9.52 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.84 µg/m³
  • PM10: 9.41 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.