Air Quality in Granite City, United States
Windy
25.6°C · 47.5% humidity
25.6°
Feels 25.6°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
62
6pm
62
62
52
9pm
55
37
38
12am
39
40
41
3am
41
41
42
6am
42
42
62
9am
62
62
62
12pm
62
42
42
3pm
42
42
Station readings
48h ago
AQI 42
PM2.5 10.0 µg/m³ · 48h ago
Air Quality Index Trend
36h · 6 stnGranite City'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▲
12.61 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Granite City?
Temperature & Precipitation
PM2.5 Trend
36h · 6 stationsPM2.512.61 µg/m³
✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX5.9
High
Station readings (2 stations within 25 km)
12.61
Median
11.55
Average
9.6
Low
13.5
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -1.8
What is the 7-day forecast for Granite City?
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: 3.5°C
Where are air quality stations near Granite City?
50
Blair Street, Missouri, USA
42
East St. Louis, Illinois, USA
43
Forest Park, Missouri, USA
55
Ladue, Missouri, USA
34
Ladue, Missouri, USA
What cities are near Granite City?
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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 2026-08-08T02:09 UTC.