Air Quality in Collinsville, United States

Rain
19.5°C · 96.9% humidity
19.5°
Feels 19.5°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast
34 9am
54
34
46 12pm
43
40
38 3pm
37
36
36 6pm
35
35
35 9pm
34
34
34 12am
27
27
27 3am
27
27
34 6am
34
25
AD 728×90

Air Quality Index Trend

45h · 6 stn

Collinsville's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

96.9%
Humidity
48.3 km/h
Wind NE
1019.0 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
46
11.06 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Collinsville?

Temperature & Precipitation

PM2.5 Trend

45h · 6 stations
PM2.511.06 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (3 stations within 25 km)
11.06
Median
11.0
Average
9.8
Low
12.6
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -0.2
Both models agree Avg diff: 6.8°C

Where are air quality stations near Collinsville?

52
East St. Louis, Illinois, USA
16.6 km PM2.5: 12.6 µg/m³
35
Blair Street, Missouri, USA
18.6 km PM2.5: 8.4 µg/m³

What cities are near Collinsville?

47 Fairview Heights 48 O'Fallon 41 Granite City 48 East Saint Louis 39 Edwardsville 47 Belleville 44 St. Louis 37 Spanish Lake 27 University City 32 Ferguson
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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 2026-09-05T17:11 UTC.