Air Quality in Granite City, United States

Clear
38.4°C · 25.8% humidity
38.4°
Feels 38.4°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
34 1pm
34
34
38 4pm
34
34
34 7pm
34
34
34 10pm
34
34
27 1am
27
27
27 4am
27
34
34 7am
25
27
27 10am
27
27
AD 728×90

Air Quality Index Trend

46h · 4 stn

Granite 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.

25.8%
Humidity
35.3 km/h
Wind S
1005.9 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
38
9.17 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Granite City?

Temperature & Precipitation

PM2.5 Trend

46h · 4 stations
PM2.59.17 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
Station readings (5 stations within 25 km)
9.17
Median
8.78
Average
5.8
Low
10.3
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -1.0
Both models agree Avg diff: 5.9°C

Where are air quality stations near Granite City?

38
Blair Street, Missouri, USA
6.6 km PM2.5: 9.1 µg/m³
42
Blair Street, Missouri, USA
6.6 km PM2.5: 10.1 µg/m³
36
East St. Louis, Illinois, USA
10.0 km PM2.5: 8.6 µg/m³
30
Forest Park, Missouri, USA
13.9 km PM2.5: 7.2 µg/m³
43
Ladue, Missouri, USA
18.4 km PM2.5: 10.3 µg/m³

What cities are near Granite City?

36 East Saint Louis 38 St. Louis 37 Spanish Lake 37 Ferguson 38 Collinsville 35 University City 38 Clayton 37 Florissant 39 Overland 38 Fairview Heights
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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 2026-09-05T21:20 UTC.