Hourly Weather | Today Sunday, August 30, 2026
Joliet, Illinois
1 AM
Cloudy Night
73°
Feels Like 75°
29
Humidity: 81%
UV Index: 0
Wind: 6 mph
2 AM
Cloudy Night
73°
Feels Like 73°
20
Humidity: 82%
UV Index: 0
Wind: 6 mph
3 AM
Cloudy Night
72°
Feels Like 72°
20
Humidity: 84%
UV Index: 0
Wind: 6 mph
4 AM
Cloudy Night
70°
Feels Like 72°
20
Humidity: 86%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
68°
Feels Like 70°
20
Humidity: 91%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Night
70°
Feels Like 70°
20
Humidity: 85%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
70°
Feels Like 72°
16
Humidity: 86%
UV Index: 0
Wind: 5 mph
8 AM
Cloudy Weather
72°
Feels Like 73°
7
Humidity: 86%
UV Index: 1
Wind: 5 mph
9 AM
Cloudy Weather
73°
Feels Like 79°
7
Humidity: 83%
UV Index: 2
Wind: 5 mph
10 AM
Cloudy Weather
77°
Feels Like 82°
7
Humidity: 78%
UV Index: 3
Wind: 6 mph
11 AM
Cloudy Weather
79°
Feels Like 88°
7
Humidity: 72%
UV Index: 4
Wind: 7 mph
12 PM
Cloudy Weather
82°
Feels Like 90°
7
Humidity: 67%
UV Index: 4
Wind: 8 mph
1 PM
Cloudy Weather
84°
Feels Like 93°
5
Humidity: 63%
UV Index: 5
Wind: 9 mph
2 PM
Cloudy Weather
88°
Feels Like 95°
0
Humidity: 60%
UV Index: 4
Wind: 10 mph
3 PM
Cloudy Weather
88°
Feels Like 95°
0
Humidity: 59%
UV Index: 4
Wind: 12 mph
4 PM
Cloudy Weather
90°
Feels Like 97°
0
Humidity: 57%
UV Index: 3
Wind: 10 mph
5 PM
Cloudy Weather
88°
Feels Like 95°
0
Humidity: 61%
UV Index: 2
Wind: 10 mph
6 PM
Cloudy Weather
86°
Feels Like 91°
0
Humidity: 64%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
84°
Feels Like 90°
1
Humidity: 70%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Night
82°
Feels Like 88°
4
Humidity: 76%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
79°
Feels Like 84°
4
Humidity: 82%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
77°
Feels Like 82°
4
Humidity: 87%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
75°
Feels Like 81°
4
Humidity: 88%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 AM
43 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.36 µg/m³
  • PM10: 10.74 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

2 AM
44 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.61 µg/m³
  • PM10: 11.03 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

3 AM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.07 µg/m³
  • PM10: 11.5 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

4 AM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.62 µg/m³
  • PM10: 12.08 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.17 µg/m³
  • PM10: 12.65 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

6 AM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.84 µg/m³
  • PM10: 13.33 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 ppb
  • SO2: 0.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 AM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.56 µg/m³
  • PM10: 14.1 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.4 ppb
  • SO2: 0.7 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 14.16 µg/m³
  • PM10: 14.72 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.68 µg/m³
  • PM10: 15.27 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.9 ppb
  • SO2: 0.8 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

10 AM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.26 µg/m³
  • PM10: 15.89 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.8 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.97 µg/m³
  • PM10: 16.63 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.3 ppb
  • SO2: 1.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 16.05 µg/m³
  • PM10: 16.7 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.9 ppb
  • SO2: 1.3 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 15.83 µg/m³
  • PM10: 16.45 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

2 PM
60 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 15.52 µg/m³
  • PM10: 16.11 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.6 ppb
  • SO2: 1.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

3 PM
61 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 15.03 µg/m³
  • PM10: 15.59 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.6 ppb
  • SO2: 1.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

4 PM
60 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 14.52 µg/m³
  • PM10: 15.06 µg/m³
  • O3: 0.057 ppm
  • NO2: 0.6 ppb
  • SO2: 1.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

5 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 14.11 µg/m³
  • PM10: 14.64 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.9 ppb
  • SO2: 1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.63 µg/m³
  • PM10: 14.14 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

7 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.98 µg/m³
  • PM10: 13.48 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.23 µg/m³
  • PM10: 12.71 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.62 µg/m³
  • PM10: 12.08 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.04 µg/m³
  • PM10: 11.48 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.38 µg/m³
  • PM10: 10.79 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

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