Air Quality in Chicago, United States

Windy
18.6°C · 67.2% humidity
18.6°
Feels 18.6°
43
Good
Air quality is satisfactory. Enjoy outdoor activities.
272 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
53 1pm
48
40
63 4pm
50
50
50 7pm
50
50
50 10pm
50
63
63 1am
63
63
88 4am
88
88
63 7am
50
38
25 10am
38
38
Station readings
53
48
40
CAMS model adj +13
37
37
50
50
37
37
37
37
37
37
37
50
50
50
50
75
75
75
50
37
25
12
25
25
AD 728×90

PM2.5 Trend (24h)

24h · 270 stations
67.2%
Humidity
92.2 km/h
Wind SW
1017.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Chicago?

Temperature & Precipitation

PM2.510.34 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (272 stations within 25 km)
10.34
Median
10.44
Average
5.17
Low
16.45
High
PM2.5 µg/m³ · Model: 8.9 · Bias: -1.4

What is the 7-day forecast for Chicago?

04-09
18.6° 11.3°
04-10
18.3° 5.1°
12.06 mm
04-11
6.9° 3.6°
19.69 mm
04-12
18.1° 8.0°
1.88 mm
04-13
25.6° 17.0°
2.0 mm
04-14
25.4° 18.0°
9.06 mm
04-15
14.4° 3.8°
0.88 mm
Both models agree Avg diff: 4.7°C

Where are air quality stations near Chicago?

41
Lower West Side 3
0.3 km PM2.5: 9.9 µg/m³
38
Armour Square 1
1.2 km PM2.5: 9.1 µg/m³
40
Bridgeport 1
1.4 km PM2.5: 9.6 µg/m³
42
Lower West Side 2
1.6 km PM2.5: 10.0 µg/m³
52
Near West Side 4
1.7 km PM2.5: 12.7 µg/m³
42
Lower West Side 4
1.8 km PM2.5: 10.2 µg/m³
43
Armour Square 2
1.8 km PM2.5: 10.4 µg/m³
39
Near West Side 4
2.3 km PM2.5: 9.3 µg/m³
35
Near West Side 5
2.3 km PM2.5: 8.5 µg/m³
51
Bridgeport 2
2.5 km PM2.5: 12.1 µg/m³

What cities are near Chicago?

43 Bridgeport 43 Lower West Side 43 Near South Side 43 McKinley Park 43 Douglas 43 Chicago Loop 43 New City 43 Grand Boulevard 43 South Lawndale 42 West Town

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T16:54 UTC.