Air Quality in Chicago, United States

Windy
18.6°C · 67.2% humidity
18.6°
Feels 18.6°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
274 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
34 4pm
30
29
35 7pm
35
35
35 10pm
35
48
48 1am
48
48
73 4am
73
73
48 7am
35
23
10 10am
23
23
23 1pm
23
35
Station readings
34
30
29
CAMS model adj -2
50
37
37
37
37
37
37
37
50
50
50
50
75
75
75
50
37
25
12
25
25
25
25
37
AD 728×90

PM2.5 Trend (24h)

24h · 271 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

PM2.56.85 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (274 stations within 25 km)
6.85
Median
7.02
Average
5.02
Low
18.57
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +2.0

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: 7.0°C

Where are air quality stations near Chicago?

29
Lower West Side 3
0.3 km PM2.5: 6.9 µg/m³
30
Armour Square 1
1.2 km PM2.5: 7.3 µg/m³
28
Bridgeport 1
1.4 km PM2.5: 6.7 µg/m³
31
Lower West Side 2
1.6 km PM2.5: 7.4 µg/m³
26
Near West Side 4
1.7 km PM2.5: 6.3 µg/m³
29
Lower West Side 4
1.8 km PM2.5: 6.9 µg/m³
31
Armour Square 2
1.8 km PM2.5: 7.5 µg/m³
30
Near West Side 4
2.3 km PM2.5: 7.3 µg/m³
27
Near West Side 5
2.3 km PM2.5: 6.4 µg/m³
32
Bridgeport 2
2.5 km PM2.5: 7.8 µg/m³

What cities are near Chicago?

28 Bridgeport 28 Lower West Side 28 Near South Side 28 McKinley Park 28 Douglas 28 Chicago Loop 28 New City 29 Grand Boulevard 28 South Lawndale 28 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 2026-04-09T19:33 UTC.