Air Quality in Chicago Loop, United States

Partly Cloudy
25.1°C · 51.2% humidity
25.1°
Feels 25.1°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
263 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
16 5pm
16
15
38 8pm
34
29
26 11pm
22
22
48 2am
59
76
75 5am
75
75
57 8am
74
75
137 11am
137
137
137 2pm
137
137
Station readings 5h ago
AQI 8
PM2.5 2.0 µg/m³ · 5h ago
CAMS model adj -9
25
25
24
25
27
27
27
25
27
54
66
83
83
83
83
66
83
84
146
146
146
146
146
146
AD 728×90

Air Quality Index Trend

40h · 1 stn

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

51.2%
Humidity
36.2 km/h
Wind NE
1014.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
38
9.11 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Chicago Loop?

Temperature & Precipitation

PM2.5 Trend

40h · 1 station
PM2.59.11 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (263 stations within 25 km)
9.11
Median
9.4
Average
5.12
Low
24.04
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -2.9

What is the 7-day forecast for Chicago Loop?

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
07-28
33.2° 22.5°
2.38 mm
Both models agree Avg diff: 3.7°C

Where are air quality stations near Chicago Loop?

38
Loop 1
0.5 km PM2.5: 9.1 µg/m³
38
Near North Side 4
1.3 km PM2.5: 9.2 µg/m³
38
Loop 2
1.3 km PM2.5: 9.1 µg/m³
36
Near North Side 3
1.7 km PM2.5: 8.6 µg/m³
38
Near West Side 3
1.8 km PM2.5: 9.2 µg/m³
38
Near West Side 4
1.9 km PM2.5: 9.1 µg/m³
38
West Town 3
2.1 km PM2.5: 9.0 µg/m³
36
Near South Side 1
2.1 km PM2.5: 8.7 µg/m³
44
Near West Side 4
2.6 km PM2.5: 10.6 µg/m³
38
Near North Side 2
2.6 km PM2.5: 9.2 µg/m³

What cities are near Chicago Loop?

38 Near North Side 38 Near South Side 39 West Town 41 Chicago 40 Lower West Side 29 Lincoln Park 39 Bridgeport 39 Douglas 38 East Garfield Park 40 McKinley Park
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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 2026-07-22T01:11 UTC.