What is the air quality in Chicago today?

The current Air Quality Index (AQI) in Chicago is 53 (Moderate). PM2.5 concentration is 13.19 µg/m³.

What is the temperature in Chicago right now?

The current temperature in Chicago is 28.2°C (feels like 29.8°C). Humidity is 45.0% and wind speed is 52.4 km/h.

Air Quality in Chicago, United States

Windy

28.2°C · 45.0% humidity

28.2°

Feels 29.8°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

276 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

7 9am

53 12pm

23 3pm

11 6pm

9 9pm

6 12am

46 3am

63 6am

Station readings

CAMS model adj -20

Air Quality Index Trend

44h · 1 stn

View full history →

Chicago's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

45.0%

Humidity

52.4 km/h

Wind ENE

1014.8 hPa

Pressure

17.4

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

13.19 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Chicago?

Temperature & Precipitation

PM2.5 Trend

44h · 1 station

PM2.513.19 µg/m³ ✓ WHO

Moderate

PM1020.55 µg/m³

Good

UV INDEX17.4

Extreme

Station readings (276 stations within 25 km)

13.19

Median

11.47

Average

1.73

Low

19.6

High

PM2.5 µg/m³ · Model: 9.75 · Bias: -3.4

What is the 7-day forecast for Chicago?

07-21

28.2° 23.4°

0.81 mm

07-22

26.7° 21.3°

07-23

25.1° 18.5°

3.56 mm

07-24

28.1° 19.9°

07-25

23.8° 19.7°

0.13 mm

07-26

29.2° 22.9°

3.13 mm

07-27

27.2° 21.5°

1.06 mm

Both models agree Avg diff: 3.5°C

Where are air quality stations near Chicago?

Lower West Side 3

0.3 km PM2.5: 15.5 µg/m³

Armour Square 1

1.2 km PM2.5: 13.9 µg/m³

Bridgeport 1

1.4 km PM2.5: 13.7 µg/m³

Lower West Side 2

1.6 km PM2.5: 14.3 µg/m³

Near West Side 4

1.7 km PM2.5: 7.0 µg/m³

Lower West Side 4

1.8 km PM2.5: 14.2 µg/m³

Armour Square 2

1.8 km PM2.5: 13.9 µg/m³

Near West Side 4

2.3 km PM2.5: 13.8 µg/m³

Near West Side 5

2.3 km PM2.5: 13.5 µg/m³

Bridgeport 2

2.5 km PM2.5: 13.9 µg/m³

What cities are near Chicago?

51 Bridgeport 52 Lower West Side 48 Near South Side 51 McKinley Park 50 Douglas 49 Chicago Loop 51 New City 48 Grand Boulevard 52 South Lawndale 51 West Town

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:12 UTC.