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Hourly Weather | Today › Monday, August 3, 2026
Active Weather Warnings
Chicago, Illinois
9 AM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 84%
UV Index: 3
Wind: 6 mph
10 AM
Cloudy Weather
72°
Feels Like 79°
0
Humidity: 82%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
73°
Feels Like 82°
0
Humidity: 74%
UV Index: 6
Wind: 7 mph
12 PM
Cloudy Weather
77°
Feels Like 86°
0
Humidity: 67%
UV Index: 8
Wind: 7 mph
1 PM
Cloudy Weather
79°
Feels Like 86°
0
Humidity: 64%
UV Index: 9
Wind: 8 mph
2 PM
Cloudy Weather
79°
Feels Like 86°
0
Humidity: 61%
UV Index: 8
Wind: 9 mph
3 PM
Cloudy Weather
79°
Feels Like 82°
0
Humidity: 62%
UV Index: 6
Wind: 9 mph
4 PM
Cloudy Weather
79°
Feels Like 81°
0
Humidity: 61%
UV Index: 4
Wind: 9 mph
5 PM
Cloudy Weather
77°
Feels Like 79°
0
Humidity: 62%
UV Index: 3
Wind: 9 mph
6 PM
Cloudy Weather
77°
Feels Like 79°
0
Humidity: 64%
UV Index: 2
Wind: 8 mph
7 PM
Cloudy Weather
75°
Feels Like 75°
0
Humidity: 66%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
75°
Feels Like 73°
0
Humidity: 71%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
73°
Feels Like 73°
0
Humidity: 74%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 77%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 79%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.3 µg/m³
  • PM10: 4.26 µg/m³
  • O3: 0.006 ppm
  • NO2: 1.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.83 µg/m³
  • PM10: 4.84 µg/m³
  • O3: 0.008 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 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: 7.53 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.4 ppb
  • SO2: 1.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.36 µg/m³
  • PM10: 10.07 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.4 ppb
  • SO2: 1.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 11.22 µg/m³
  • PM10: 11.85 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 9.89 µg/m³
  • PM10: 10.37 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.5 ppb
  • SO2: 1.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 8 µg/m³
  • PM10: 8.35 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.4 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.33 µg/m³
  • PM10: 7.63 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.17 µg/m³
  • PM10: 7.45 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.22 µg/m³
  • PM10: 7.51 µg/m³
  • O3: 0.040 ppm
  • NO2: 1 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.21 µg/m³
  • PM10: 7.5 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.31 µg/m³
  • PM10: 7.62 µg/m³
  • O3: 0.033 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.49 µg/m³
  • PM10: 7.83 µg/m³
  • O3: 0.023 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.57 µg/m³
  • PM10: 7.93 µg/m³
  • O3: 0.016 ppm
  • NO2: 2.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 7.35 µg/m³
  • PM10: 7.7 µg/m³
  • O3: 0.012 ppm
  • NO2: 2.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Chicago

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued August 3 at 2:40AM CDT until August 3 at 9:00AM CDT by NWS Chicago IL
Aug 3, 2:40 AM → Aug 3, 9:00 AM
WHAT: High wave action and dangerous currents expected at
Lake Michigan beaches. Waves 3 to 6 ft expected.

WHERE: Lake IL, Northern Cook and Central Cook Counties.

WHEN: Until 9 AM CDT this morning.

IMPACTS: Swimming conditions will be life threatening,
especially for inexperienced swimmers. For information on swim
advisories or bans at Chicago beaches: www. cpdbeaches. com.
+ Read More
Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.
Updated: Aug 3, 8:35 AM Source: NWS Alert

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