Hourly Weather | Today Friday, September 18, 2026
Aurora, Illinois
4 PM
Rainy Weather
73°
Feels Like 68°
85
Humidity: 65%
UV Index: 1
Wind: 9 mph
5 PM
Cloudy Weather
72°
Feels Like 72°
40
Humidity: 67%
UV Index: 1
Wind: 9 mph
6 PM
Cloudy Weather
72°
Feels Like 70°
34
Humidity: 69%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Night
70°
Feels Like 66°
29
Humidity: 74%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
66°
Feels Like 64°
20
Humidity: 80%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
66°
Feels Like 64°
20
Humidity: 81%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
66°
Feels Like 64°
20
Humidity: 82%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
66°
Feels Like 64°
20
Humidity: 84%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 8.14 µg/m³
  • PM10: 8.43 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.28 µg/m³
  • PM10: 8.57 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.55 µg/m³
  • PM10: 8.85 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.63 µg/m³
  • PM10: 8.95 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.68 µg/m³
  • PM10: 9.03 µg/m³
  • O3: 0.032 ppm
  • NO2: 2.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.9 µg/m³
  • PM10: 9.27 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.12 µg/m³
  • PM10: 9.52 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.16 µg/m³
  • PM10: 9.59 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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