❮
Today Hourly 7 days 30 days Air Quality
❯
Hourly Weather | Today › Sunday, March 15, 2026
Active Weather Warnings
Chicago, Illinois
6 PM
Stormy Weather
61°
Feels Like 52°
84
Humidity: 79%
UV Index: 0
Wind: 23 mph
7 PM
Stormy Weather
57°
Feels Like 46°
85
Humidity: 81%
UV Index: 0
Wind: 24 mph
8 PM
Cloudy Weather
54°
Feels Like 43°
49
Humidity: 71%
UV Index: 0
Wind: 27 mph
9 PM
Cloudy Weather
48°
Feels Like 36°
49
Humidity: 71%
UV Index: 0
Wind: 28 mph
10 PM
Rainy Weather
43°
Feels Like 25°
59
Humidity: 73%
UV Index: 0
Wind: 29 mph
11 PM
Rainy Weather
37°
Feels Like 18°
75
Humidity: 82%
UV Index: 0
Wind: 29 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 1.11 µg/m³
  • PM10: 1.17 µg/m³
  • O3: 0.050 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.04 µg/m³
  • PM10: 1.08 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.2 µg/m³
  • PM10: 1.24 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.51 µg/m³
  • PM10: 1.54 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.7 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 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.72 µg/m³
  • PM10: 1.76 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.16 µg/m³
  • PM10: 1.2 µg/m³
  • O3: 0.044 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 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

Wind Advisory

Wind Advisory issued March 15 at 3:29PM CDT until March 15 at 9:00PM CDT by NWS Chicago IL
Mar 15, 3:29 PM → Mar 15, 9:00 PM
WHAT: Southwest winds 20 to 30 mph with gusts up to 45 mph.

WHERE: Central Cook and Kendall Counties.

WHEN: Until 9 PM CDT this evening.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
+ Read More
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Updated: Mar 15, 4:34 PM Source: NWS Alert