What is the air quality in Chicago today?

The current Air Quality Index (AQI) in Chicago is 29 (Good). PM2.5 concentration is 6.95 µg/m³.

What is the temperature in Chicago right now?

The current temperature in Chicago is 9.5°C (feels like 3.8°C). Humidity is 64.7% and wind speed is 77.7 km/h.

Is it safe to go outside in Chicago?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 9.4 (Very High).

Air Quality in Chicago, United States

Windy

9.5°C · 64.7% humidity

9.5°

Feels 3.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

272 stations

Nearby Monitoring Stations

AQI Forecast

25 1pm

29 4pm

25 7pm

25 10pm

27 1am

27 4am

27 7am

25 10am

Air Quality Index Trend

47h · 4 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. Current PM2.5 concentration in Chicago is 1.4× the WHO annual guideline of 5 µg/m³.

64.7%

Humidity

77.7 km/h

Wind NNE

1028.3 hPa

Pressure

9.4

UV Very High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.95 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Chicago?

Temperature & Precipitation

PM2.5 Trend

47h · 4 stations

PM2.56.95 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX9.4

Very High

Station readings (272 stations within 25 km)

6.95

Median

5.78

Average

3.28

Low

14.11

High

PM2.5 µg/m³ · Model: 7.1 · Bias: +0.2

What is the 7-day forecast for Chicago?

05-28

24.7° 10.7°

16.25 mm

05-29

30.0° 8.1°

05-30

24.9° 11.6°

0.06 mm

05-31

27.3° 15.2°

0.06 mm

06-01

31.9° 14.7°

06-02

21.3° 17.1°

9.38 mm

06-03

31.5° 22.7°

Both models agree Avg diff: 5.1°C

Where are air quality stations near Chicago?

Lower West Side 3

0.3 km PM2.5: 7.4 µg/m³

Armour Square 1

1.2 km PM2.5: 7.1 µg/m³

Bridgeport 1

1.4 km PM2.5: 6.6 µg/m³

Lower West Side 2

1.6 km PM2.5: 8.5 µg/m³

Near West Side 4

1.7 km PM2.5: 6.1 µg/m³

Lower West Side 4

1.8 km PM2.5: 7.0 µg/m³

Armour Square 2

1.8 km PM2.5: 7.2 µg/m³

Near West Side 4

2.3 km PM2.5: 6.4 µg/m³

Near West Side 5

2.3 km PM2.5: 6.2 µg/m³

Bridgeport 2

2.5 km PM2.5: 6.9 µg/m³

What cities are near Chicago?

28 Bridgeport 31 Lower West Side 23 Near South Side 28 McKinley Park 23 Douglas 23 Chicago Loop 28 New City 20 Grand Boulevard 28 South Lawndale 25 West Town

Get AQI alerts for Chicago

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T21:46 UTC.