Air Quality in Granite City, United States
Drizzle
19.8°C · 96.3% humidity
19.8°
Feels 19.8°
56
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
5 stations
Nearby Monitoring Stations
AQI Forecast
34
11am
34
34
56
2pm
50
45
42
5pm
40
38
37
8pm
36
36
35
11pm
35
28
27
2am
27
27
27
5am
34
34
25
8am
27
27
Air Quality Index Trend
45h · 8 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.
96.3%
Humidity
44.1 km/h
Wind NE
1018.9 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
14.35 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Granite City?
Temperature & Precipitation
PM2.5 Trend
45h · 8 stationsPM2.514.35 µg/m³
✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
Station readings (5 stations within 25 km)
14.35
Median
12.34
Average
7.0
Low
18.3
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -6.2
What is the 7-day forecast for Granite City?
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: 5.9°C
Where are air quality stations near Granite City?
68
Branch Street, Missouri, USA
64
Forest Park, Missouri, USA
52
Forest Park, Missouri, USA
29
Ladue, Missouri, USA
35
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 2026-09-05T19:27 UTC.