Hourly Weather | Today Thursday, February 26, 2026
Waukegan, Illinois
2 AM
Cloudy Night
21°
Feels Like 18°
0
Frost Risk: 97%
Humidity: 61%
UV Index: 0
Wind: 6 mph
3 AM
Cloudy Night
21°
Feels Like 19°
0
Frost Risk: 97%
Humidity: 61%
UV Index: 0
Wind: 5 mph
4 AM
Cloudy Night
21°
Feels Like 19°
0
Frost Risk: 97%
Humidity: 61%
UV Index: 0
Wind: 5 mph
5 AM
Cloudy Night
21°
Feels Like 21°
0
Frost Risk: 97%
Humidity: 61%
UV Index: 0
Wind: 5 mph
6 AM
Cloudy Night
21°
Feels Like 21°
0
Frost Risk: 97%
Humidity: 61%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
23°
Feels Like
0
Frost Risk: 43%
Humidity: 58%
UV Index: 0
Wind: 15 mph
8 AM
Cloudy Weather
27°
Feels Like 12°
0
Humidity: 52%
UV Index: 1
Wind: 14 mph
9 AM
Cloudy Weather
28°
Feels Like 18°
0
Humidity: 47%
UV Index: 2
Wind: 14 mph
10 AM
Cloudy Weather
32°
Feels Like 21°
0
Humidity: 42%
UV Index: 3
Wind: 16 mph
11 AM
Cloudy Weather
36°
Feels Like 25°
0
Humidity: 39%
UV Index: 3
Wind: 17 mph
12 PM
Cloudy Weather
37°
Feels Like 28°
0
Humidity: 36%
UV Index: 4
Wind: 18 mph
1 PM
Cloudy Weather
41°
Feels Like 41°
0
Humidity: 34%
UV Index: 3
Wind: 9 mph
2 PM
Cloudy Weather
43°
Feels Like 39°
0
Humidity: 36%
UV Index: 2
Wind: 10 mph
3 PM
Cloudy Weather
43°
Feels Like 37°
0
Humidity: 39%
UV Index: 1
Wind: 10 mph
4 PM
Cloudy Weather
45°
Feels Like 37°
0
Humidity: 40%
UV Index: 1
Wind: 10 mph
5 PM
Cloudy Weather
43°
Feels Like 36°
0
Humidity: 47%
UV Index: 0
Wind: 9 mph
6 PM
Cloudy Night
39°
Feels Like 34°
0
Humidity: 55%
UV Index: 0
Wind: 8 mph
7 PM
Cloudy Night
37°
Feels Like 30°
0
Humidity: 62%
UV Index: 0
Wind: 8 mph
8 PM
Cloudy Night
37°
Feels Like 30°
0
Humidity: 65%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
37°
Feels Like 30°
0
Humidity: 67%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Night
36°
Feels Like 28°
0
Humidity: 72%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
36°
Feels Like 28°
0
Humidity: 75%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.35 µg/m³
  • PM10: 5.3 µg/m³
  • O3: 0.037 ppm
  • NO2: 4.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

3 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.71 µg/m³
  • PM10: 5.75 µg/m³
  • O3: 0.036 ppm
  • NO2: 4.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

4 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.13 µg/m³
  • PM10: 6.3 µg/m³
  • O3: 0.036 ppm
  • NO2: 4.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.65 µg/m³
  • PM10: 6.98 µg/m³
  • O3: 0.035 ppm
  • NO2: 4.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.3 µg/m³
  • PM10: 7.87 µg/m³
  • O3: 0.033 ppm
  • NO2: 5.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.18 µg/m³
  • PM10: 9.2 µg/m³
  • O3: 0.031 ppm
  • NO2: 7 ppb
  • SO2: 1 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.09 µg/m³
  • PM10: 10.6 µg/m³
  • O3: 0.029 ppm
  • NO2: 9.5 ppb
  • SO2: 1.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.72 µg/m³
  • PM10: 11.53 µg/m³
  • O3: 0.029 ppm
  • NO2: 11 ppb
  • SO2: 1.7 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.66 µg/m³
  • PM10: 10 µg/m³
  • O3: 0.034 ppm
  • NO2: 9.4 ppb
  • SO2: 2.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.83 µg/m³
  • PM10: 8.78 µg/m³
  • O3: 0.036 ppm
  • NO2: 7.7 ppb
  • SO2: 2.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.31 µg/m³
  • PM10: 7.96 µg/m³
  • O3: 0.037 ppm
  • NO2: 6.3 ppb
  • SO2: 2.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.38 µg/m³
  • PM10: 6.65 µg/m³
  • O3: 0.042 ppm
  • NO2: 5 ppb
  • SO2: 1.9 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.39 µg/m³
  • PM10: 5.36 µg/m³
  • O3: 0.044 ppm
  • NO2: 4.1 ppb
  • SO2: 1.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.45 µg/m³
  • PM10: 4.22 µg/m³
  • O3: 0.045 ppm
  • NO2: 3.7 ppb
  • SO2: 1.7 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.93 µg/m³
  • PM10: 3.71 µg/m³
  • O3: 0.044 ppm
  • NO2: 4.2 ppb
  • SO2: 1.4 ppb
  • CO: 0.17 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: 3.36 µg/m³
  • PM10: 4.28 µg/m³
  • O3: 0.038 ppm
  • NO2: 6.8 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.97 µg/m³
  • PM10: 5.04 µg/m³
  • O3: 0.032 ppm
  • NO2: 9.7 ppb
  • SO2: 0.6 ppb
  • CO: 0.21 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: 4.62 µg/m³
  • PM10: 5.86 µg/m³
  • O3: 0.028 ppm
  • NO2: 10.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.15 µg/m³
  • PM10: 6.43 µg/m³
  • O3: 0.028 ppm
  • NO2: 10.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.47 µg/m³
  • PM10: 6.62 µg/m³
  • O3: 0.030 ppm
  • NO2: 9 ppb
  • SO2: 0.4 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.69 µg/m³
  • PM10: 6.71 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

11 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.11 µg/m³
  • PM10: 7.08 µg/m³
  • O3: 0.032 ppm
  • NO2: 6.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.21 ppm

Health Recommendations:

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