Hourly Weather | Today Thursday, December 4, 2025
Naperville, Illinois
5 AM
Night
Feels Like -6°
20
Humidity: 88%
Wind: 8 mph
UV Index: 0
6 AM
Night
Feels Like -6°
13
Humidity: 89%
Wind: 8 mph
UV Index: 0
7 AM
Cloudy Night
Feels Like -9°
0
Humidity: 89%
Wind: 8 mph
UV Index: 0
8 AM
Cloudy Weather
Feels Like -9°
0
Humidity: 96%
Wind: 8 mph
UV Index: 0
9 AM
Cloudy Weather
Feels Like -4°
0
Humidity: 92%
Wind: 8 mph
UV Index: 1
10 AM
Cloudy Weather
Feels Like
0
Humidity: 83%
Wind: 7 mph
UV Index: 2
11 AM
Cloudy Weather
10°
Feels Like 12°
0
Humidity: 75%
Wind: 6 mph
UV Index: 2
12 PM
Cloudy Weather
12°
Feels Like 18°
0
Humidity: 72%
Wind: 5 mph
UV Index: 2
1 PM
Cloudy Weather
16°
Feels Like 19°
0
Humidity: 72%
Wind: 5 mph
UV Index: 2
2 PM
Cloudy Weather
16°
Feels Like 19°
0
Humidity: 72%
Wind: 5 mph
UV Index: 2
3 PM
Cloudy Weather
14°
Feels Like 16°
0
Humidity: 77%
Wind: 5 mph
UV Index: 1
4 PM
Cloudy Weather
10°
Feels Like 10°
0
Humidity: 83%
Wind: 5 mph
UV Index: 0
5 PM
Cloudy Night
Feels Like
0
Humidity: 84%
Wind: 5 mph
UV Index: 0
6 PM
Cloudy Night
Feels Like
0
Humidity: 87%
Wind: 6 mph
UV Index: 0
7 PM
Cloudy Night
Feels Like
0
Humidity: 98%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Night
Feels Like -6°
0
Humidity: 100%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
Feels Like -4°
0
Humidity: 98%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
Feels Like -2°
0
Humidity: 95%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Night
Feels Like -6°
0
Humidity: 96%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

5 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.58 µg/m³
  • PM10: 2.8 µg/m³
  • O3: 0.032 ppm
  • NO2: 2.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

6 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.85 µg/m³
  • PM10: 3.08 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

7 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.05 µg/m³
  • PM10: 3.31 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

8 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.31 µg/m³
  • PM10: 3.62 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

9 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.54 µg/m³
  • PM10: 3.9 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

10 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.88 µg/m³
  • PM10: 4.3 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

11 AM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.57 µg/m³
  • PM10: 5.07 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

12 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.46 µg/m³
  • PM10: 6.02 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

1 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.56 µg/m³
  • PM10: 7.18 µg/m³
  • O3: 0.034 ppm
  • NO2: 4.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

2 PM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.6 µg/m³
  • PM10: 8.28 µg/m³
  • O3: 0.033 ppm
  • NO2: 5.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.36 µg/m³
  • PM10: 9.08 µg/m³
  • O3: 0.032 ppm
  • NO2: 7 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.03 µg/m³
  • PM10: 9.82 µg/m³
  • O3: 0.029 ppm
  • NO2: 11 ppb
  • SO2: 0.3 ppb
  • CO: 0.23 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: 9.83 µg/m³
  • PM10: 10.68 µg/m³
  • O3: 0.024 ppm
  • NO2: 15.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.65 µg/m³
  • PM10: 11.42 µg/m³
  • O3: 0.021 ppm
  • NO2: 17.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.27 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.22 µg/m³
  • PM10: 11.73 µg/m³
  • O3: 0.019 ppm
  • NO2: 18 ppb
  • SO2: 0.3 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.55 µg/m³
  • PM10: 11.89 µg/m³
  • O3: 0.018 ppm
  • NO2: 17.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.1 µg/m³
  • PM10: 11.29 µg/m³
  • O3: 0.018 ppm
  • NO2: 16.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.58 µg/m³
  • PM10: 10.73 µg/m³
  • O3: 0.019 ppm
  • NO2: 16 ppb
  • SO2: 0.3 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.15 µg/m³
  • PM10: 10.32 µg/m³
  • O3: 0.019 ppm
  • NO2: 15.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.27 ppm

Health Recommendations:

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