Air Quality in East Saint Louis, United States

Drizzle
19.8°C · 96.3% humidity
19.8°
Feels 19.8°
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
34 9am
54
34
48 12pm
44
41
39 3pm
38
37
36 6pm
35
35
35 9pm
34
34
34 12am
27
27
27 3am
27
27
34 6am
34
25
AD 728×90

Air Quality Index Trend

45h · 6 stn

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

96.3%
Humidity
44.1 km/h
Wind NE
1018.9 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
48
11.43 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for East Saint Louis?

Temperature & Precipitation

PM2.5 Trend

45h · 6 stations
PM2.511.43 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (5 stations within 25 km)
11.43
Median
8.94
Average
5.0
Low
12.6
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -3.2

What is the 7-day forecast for East Saint Louis?

09-05
26.6° 19.8°
3.37 mm
09-06
38.4° 18.6°
3.06 mm
09-07
29.2° 22.6°
09-08
25.2° 21.0°
9.88 mm
09-09
24.4° 16.2°
8.12 mm
09-10
32.1° 19.3°
0.38 mm
09-11
38.3° 20.3°
0.06 mm
Both models agree Avg diff: 6.4°C

Where are air quality stations near East Saint Louis?

49
East St. Louis, Illinois, USA
1.6 km PM2.5: 11.8 µg/m³
52
East St. Louis, Illinois, USA
1.6 km PM2.5: 12.6 µg/m³
48
Branch Street, Missouri, USA
4.9 km PM2.5: 11.5 µg/m³
28
Forest Park, Missouri, USA
11.3 km PM2.5: 6.7 µg/m³
21
Ladue, Missouri, USA
17.6 km PM2.5: 5.0 µg/m³
72
Arnold West, Missouri, USA
29.1 km PM2.5: 22.1 µg/m³
68
Arnold West, Missouri, USA
29.1 km PM2.5: 20.2 µg/m³
46
Arnold West, Missouri, USA
29.1 km PM2.5: 11.0 µg/m³
51
Arnold West, Missouri, USA
29.1 km PM2.5: 12.1 µg/m³
49
Arnold West, Missouri, USA
29.1 km PM2.5: 11.8 µg/m³

What cities are near East Saint Louis?

44 St. Louis 41 Granite City 27 University City 47 Fairview Heights 39 Lemay 25 Clayton 46 Collinsville 36 Affton 30 Webster Groves 47 Belleville
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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 2026-09-05T17:12 UTC.