Hourly Weather | Today Wednesday, March 18, 2026
Oak Lawn, Illinois
4 AM
Snowy Weather
23°
Feels Like
56
Frost Risk: 94%
Humidity: 86%
UV Index: 0
Wind: 15 mph
5 AM
Cloudy Weather
25°
Feels Like
49
Frost Risk: 53%
Humidity: 83%
UV Index: 0
Wind: 16 mph
6 AM
Snowy Weather
25°
Feels Like
61
Frost Risk: 45%
Humidity: 82%
UV Index: 0
Wind: 16 mph
7 AM
Cloudy Weather
27°
Feels Like 10°
49
Humidity: 82%
UV Index: 0
Wind: 15 mph
8 AM
Snowy Weather
25°
Feels Like
65
Frost Risk: 82%
Humidity: 78%
UV Index: 0
Wind: 15 mph
9 AM
Snowy Weather
27°
Feels Like 10°
65
Frost Risk: 49%
Humidity: 81%
UV Index: 1
Wind: 16 mph
10 AM
Snowy Weather
28°
Feels Like 12°
65
Humidity: 78%
UV Index: 1
Wind: 17 mph
11 AM
Cloudy Weather
30°
Feels Like 18°
40
Humidity: 74%
UV Index: 2
Wind: 17 mph
12 PM
Cloudy Weather
34°
Feels Like 21°
34
Humidity: 70%
UV Index: 2
Wind: 16 mph
1 PM
Cloudy Weather
36°
Feels Like 27°
27
Humidity: 68%
UV Index: 2
Wind: 16 mph
2 PM
Cloudy Weather
39°
Feels Like 34°
14
Humidity: 65%
UV Index: 3
Wind: 12 mph
3 PM
Cloudy Weather
41°
Feels Like 37°
14
Humidity: 64%
UV Index: 3
Wind: 11 mph
4 PM
Cloudy Weather
43°
Feels Like 41°
14
Humidity: 61%
UV Index: 2
Wind: 11 mph
5 PM
Cloudy Weather
43°
Feels Like 39°
14
Humidity: 65%
UV Index: 2
Wind: 8 mph
6 PM
Cloudy Weather
41°
Feels Like 37°
14
Humidity: 70%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
39°
Feels Like 36°
9
Humidity: 76%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Weather
37°
Feels Like 36°
0
Humidity: 81%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
36°
Feels Like 34°
0
Humidity: 86%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Weather
36°
Feels Like 34°
0
Humidity: 88%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
36°
Feels Like 34°
0
Humidity: 87%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.46 µg/m³
  • PM10: 3.56 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.41 µg/m³
  • PM10: 3.52 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.48 µg/m³
  • PM10: 3.65 µg/m³
  • O3: 0.051 ppm
  • NO2: 1.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.72 µg/m³
  • PM10: 3.98 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.11 µg/m³
  • PM10: 4.51 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.5 ppb
  • SO2: 1.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.4 µg/m³
  • PM10: 4.94 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.64 µg/m³
  • PM10: 5.28 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.1 ppb
  • SO2: 1.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.05 µg/m³
  • PM10: 5.71 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.8 ppb
  • SO2: 1.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.79 µg/m³
  • PM10: 6.43 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.5 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.01 µg/m³
  • PM10: 7.63 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8.56 µg/m³
  • PM10: 9.22 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.8 µg/m³
  • PM10: 10.52 µg/m³
  • O3: 0.059 ppm
  • NO2: 0.8 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 10.75 µg/m³
  • PM10: 11.57 µg/m³
  • O3: 0.061 ppm
  • NO2: 0.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.48 µg/m³
  • PM10: 12.42 µg/m³
  • O3: 0.059 ppm
  • NO2: 1.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 12.59 µg/m³
  • PM10: 13.7 µg/m³
  • O3: 0.052 ppm
  • NO2: 3.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 13.79 µg/m³
  • PM10: 15.1 µg/m³
  • O3: 0.045 ppm
  • NO2: 7 ppb
  • SO2: 0.4 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

8 PM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.12 µg/m³
  • PM10: 16.62 µg/m³
  • O3: 0.040 ppm
  • NO2: 8.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

9 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.54 µg/m³
  • PM10: 18.2 µg/m³
  • O3: 0.037 ppm
  • NO2: 8.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

10 PM
63 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.02 µg/m³
  • PM10: 19.78 µg/m³
  • O3: 0.034 ppm
  • NO2: 8.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

11 PM
64 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 18.77 µg/m³
  • PM10: 20.56 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.24 ppm

Health Recommendations:

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