Air Quality in East Saint Louis, United States

Windy
25.6°C · 47.5% humidity
25.6°
Feels 25.6°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
65 10pm
45
45
54 1am
51
50
48 4am
47
47
46 7am
46
66
65 10am
65
65
65 1pm
45
45
45 4pm
45
45
45 7pm
65
65
CAMS model adj +11
54
34
34
34
34
34
34
34
34
34
34
54
54
54
54
54
34
34
34
34
34
34
54
54
AD 728×90

Air Quality Index Trend

41h · 3 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.

47.5%
Humidity
56.4 km/h
Wind NE
1017.7 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
54
13.47 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for East Saint Louis?

Temperature & Precipitation

PM2.5 Trend

41h · 3 stations
PM2.513.47 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (2 stations within 25 km)
13.47
Median
11.55
Average
9.6
Low
13.5
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -2.6

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

08-03
30.4° 20.9°
08-04
35.9° 19.3°
08-05
36.1° 16.1°
25.81 mm
08-06
40.2° 20.5°
3.5 mm
08-07
33.4° 21.2°
08-08
37.5° 25.9°
1.44 mm
08-09
35.3° 28.0°
Both models agree Avg diff: 3.6°C

Where are air quality stations near East Saint Louis?

44
East St. Louis, Illinois, USA
1.6 km PM2.5: 10.6 µg/m³
72
Branch Street, Missouri, USA
4.9 km PM2.5: 22.1 µg/m³
26
Forest Park, Missouri, USA
11.3 km PM2.5: 6.2 µg/m³
22
Ladue, Missouri, USA
17.6 km PM2.5: 5.3 µg/m³
34
Arnold West, Missouri, USA
29.1 km PM2.5: 8.2 µg/m³
20
Arnold West, Missouri, USA
29.1 km PM2.5: 4.8 µg/m³
24
Arnold West, Missouri, USA
29.1 km PM2.5: 5.8 µg/m³

What cities are near East Saint Louis?

53 St. Louis 52 Granite City 41 University City 54 Fairview Heights 49 Lemay 40 Clayton 54 Collinsville 47 Affton 43 Webster Groves 54 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 2026-08-08T06:46 UTC.