Hourly Weather | Today Tuesday, July 7, 2026
Louisville, Kentucky
11 AM
Cloudy Weather
81°
Feels Like 93°
5
Humidity: 82%
UV Index: 4
Wind: 6 mph
12 PM
Cloudy Weather
82°
Feels Like 95°
5
Humidity: 74%
UV Index: 5
Wind: 6 mph
1 PM
Cloudy Weather
84°
Feels Like 97°
8
Humidity: 69%
UV Index: 6
Wind: 7 mph
2 PM
Cloudy Weather
86°
Feels Like 97°
43
Humidity: 64%
UV Index: 5
Wind: 7 mph
3 PM
Cloudy Weather
84°
Feels Like 95°
47
Humidity: 66%
UV Index: 4
Wind: 7 mph
4 PM
Sunny with a Chance of Thunderstorms
82°
Feels Like 90°
51
Humidity: 77%
UV Index: 2
Wind: 7 mph
5 PM
Cloudy Weather
82°
Feels Like 90°
24
Humidity: 73%
UV Index: 2
Wind: 7 mph
6 PM
Cloudy Weather
82°
Feels Like 90°
19
Humidity: 72%
UV Index: 2
Wind: 7 mph
7 PM
Cloudy Weather
82°
Feels Like 88°
17
Humidity: 71%
UV Index: 1
Wind: 7 mph
8 PM
Cloudy Weather
81°
Feels Like 86°
13
Humidity: 74%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
81°
Feels Like 84°
13
Humidity: 78%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
79°
Feels Like 82°
13
Humidity: 83%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
75°
Feels Like 81°
13
Humidity: 87%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.5 µg/m³
  • PM10: 15.1 µg/m³
  • O3: 0.011 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.8 µg/m³
  • PM10: 16.42 µg/m³
  • O3: 0.041 ppm
  • NO2: 1 ppb
  • SO2: 1.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.03 µg/m³
  • PM10: 12.47 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.7 ppb
  • SO2: 1.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

2 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 9.94 µg/m³
  • PM10: 10.28 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.6 ppb
  • SO2: 1.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

3 PM
39 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.43 µg/m³
  • PM10: 9.75 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.8 ppb
  • SO2: 1.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

4 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.87 µg/m³
  • PM10: 10.19 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.1 ppb
  • SO2: 1.2 ppb
  • CO: 0.13 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.95 µg/m³
  • PM10: 10.25 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.2 ppb
  • SO2: 1.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.89 µg/m³
  • PM10: 10.18 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.1 µg/m³
  • PM10: 10.41 µg/m³
  • O3: 0.018 ppm
  • NO2: 2.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.55 µg/m³
  • PM10: 10.93 µg/m³
  • O3: 0.016 ppm
  • NO2: 2.9 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.16 µg/m³
  • PM10: 11.65 µg/m³
  • O3: 0.014 ppm
  • NO2: 3.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.85 µg/m³
  • PM10: 12.46 µg/m³
  • O3: 0.012 ppm
  • NO2: 4.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

11 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.26 µg/m³
  • PM10: 13.9 µg/m³
  • O3: 0.012 ppm
  • NO2: 4.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.