Hourly Weather | Today Wednesday, August 12, 2026
Des Plaines, Illinois
8 AM
Foggy Weather
73°
Feels Like 79°
40
Humidity: 91%
UV Index: 0
Wind: 6 mph
9 AM
Foggy Weather
75°
Feels Like 81°
34
Humidity: 88%
UV Index: 1
Wind: 6 mph
10 AM
Foggy Weather
77°
Feels Like 82°
37
Humidity: 84%
UV Index: 2
Wind: 6 mph
11 AM
Foggy Weather
79°
Feels Like 86°
47
Humidity: 80%
UV Index: 2
Wind: 6 mph
12 PM
Sunny with a Chance of Thunderstorms
79°
Feels Like 84°
51
Humidity: 79%
UV Index: 3
Wind: 7 mph
1 PM
Foggy Weather
81°
Feels Like 90°
47
Humidity: 73%
UV Index: 3
Wind: 8 mph
2 PM
Cloudy Weather
82°
Feels Like 90°
43
Humidity: 70%
UV Index: 3
Wind: 7 mph
3 PM
Cloudy Weather
81°
Feels Like 88°
47
Humidity: 72%
UV Index: 2
Wind: 7 mph
4 PM
Sunny with a Chance of Thunderstorms
79°
Feels Like 82°
51
Humidity: 79%
UV Index: 1
Wind: 7 mph
5 PM
Cloudy Weather
81°
Feels Like 86°
39
Humidity: 74%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
79°
Feels Like 84°
33
Humidity: 75%
UV Index: 2
Wind: 8 mph
7 PM
Cloudy Weather
79°
Feels Like 82°
39
Humidity: 78%
UV Index: 1
Wind: 7 mph
8 PM
Stormy Weather
75°
Feels Like 75°
51
Humidity: 82%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Night
75°
Feels Like 77°
47
Humidity: 84%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
73°
Feels Like 75°
40
Humidity: 87%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
72°
Feels Like 75°
34
Humidity: 90%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 8.05 µg/m³
  • PM10: 8.2 µg/m³
  • O3: 0.010 ppm
  • NO2: 1.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.55 µg/m³
  • PM10: 7.72 µg/m³
  • O3: 0.010 ppm
  • NO2: 1.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.14 µg/m³
  • PM10: 7.32 µg/m³
  • O3: 0.011 ppm
  • NO2: 1.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.68 µg/m³
  • PM10: 6.88 µg/m³
  • O3: 0.020 ppm
  • NO2: 1.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

12 PM
27 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.37 µg/m³
  • PM10: 6.58 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.7 ppb
  • SO2: 0.9 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.2 µg/m³
  • PM10: 6.42 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.8 ppb
  • SO2: 1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.93 µg/m³
  • PM10: 6.14 µg/m³
  • O3: 0.027 ppm
  • NO2: 1.8 ppb
  • SO2: 1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.6 µg/m³
  • PM10: 5.79 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.5 ppb
  • SO2: 1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.38 µg/m³
  • PM10: 5.54 µg/m³
  • O3: 0.030 ppm
  • NO2: 1.4 ppb
  • SO2: 0.9 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.32 µg/m³
  • PM10: 5.48 µg/m³
  • O3: 0.031 ppm
  • NO2: 1.3 ppb
  • SO2: 0.8 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.37 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.029 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.

7 PM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.34 µg/m³
  • PM10: 5.53 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.44 µg/m³
  • PM10: 5.68 µg/m³
  • O3: 0.021 ppm
  • NO2: 3.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.68 µg/m³
  • PM10: 6.01 µg/m³
  • O3: 0.014 ppm
  • NO2: 3.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.92 µg/m³
  • PM10: 6.32 µg/m³
  • O3: 0.010 ppm
  • NO2: 4 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.12 µg/m³
  • PM10: 6.58 µg/m³
  • O3: 0.007 ppm
  • NO2: 4.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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