Air Quality in East Saint Louis, United States

Windy
31.8°C · 44.1% humidity
31.8°
Feels 34.6°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast
25 7am
25
25
37 10am
34
31
29 1pm
28
27
27 4pm
26
26
26 7pm
27
27
27 10pm
27
27
27 1am
27
25
25 4am
25
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. Current PM2.5 concentration in East Saint Louis is 1.8× the WHO annual guideline of 5 µg/m³.

44.1%
Humidity
42.0 km/h
Wind N
1020.0 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
37
8.95 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
PM2.58.95 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX10.9
Extreme
AD 300×250
Station readings (4 stations within 25 km)
8.95
Median
10.18
Average
8.2
Low
15.9
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -2.7

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

05-29
31.8° 9.5°
2.06 mm
05-30
31.4° 19.8°
1.69 mm
05-31
32.8° 13.8°
06-01
31.5° 19.0°
06-02
27.3° 16.9°
06-03
30.9° 26.0°
0.94 mm
06-04
29.6° 20.3°
3.31 mm
Both models agree Avg diff: 4.6°C

Where are air quality stations near East Saint Louis?

30
East St. Louis, Illinois, USA
1.6 km PM2.5: 7.2 µg/m³
24
Forest Park, Missouri, USA
11.3 km PM2.5: 5.8 µg/m³
15
Arnold West, Missouri, USA
29.1 km PM2.5: 3.6 µg/m³
38
Arnold West, Missouri, USA
29.1 km PM2.5: 9.1 µg/m³

What cities are near East Saint Louis?

50 St. Louis 52 Granite City 36 University City 47 Fairview Heights 39 Lemay 36 Clayton 49 Collinsville 38 Affton 37 Webster Groves 46 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 2026-05-29T15:27 UTC.