What is the air quality in Belleville today?

The current Air Quality Index (AQI) in Belleville is 42 (Good). PM2.5 concentration is 10.08 µg/m³.

What is the temperature in Belleville right now?

The current temperature in Belleville is 14.2°C (feels like 14.2°C). Humidity is 82.4% and wind speed is 47.4 km/h.

Is it safe to go outside in Belleville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Belleville, United States

Drizzle

14.2°C · 82.4% humidity

14.2°

Feels 14.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 4 stn

View full history →

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

82.4%

Humidity

47.4 km/h

Wind E

1020.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.08 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Belleville?

Temperature & Precipitation

PM2.5 Trend

46h · 4 stations

PM2.510.08 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (4 stations within 25 km)

10.08

Median

10.15

Average

9.6

Low

10.6

High

PM2.5 µg/m³ · Model: 8.2 · Bias: -1.9

What is the 7-day forecast for Belleville?

10-20

13.4° 2.1°

10-21

24.8° 12.4°

4.94 mm

10-22

22.2° 8.9°

1.81 mm

10-23

12.6° 7.2°

12.13 mm

10-24

24.8° 10.1°

10-25

17.3° 3.3°

10-26

26.0° 5.9°

Both models agree Avg diff: 4.3°C

Where are air quality stations near Belleville?

East St. Louis, Illinois, USA

18.4 km PM2.5: 10.1 µg/m³

East St. Louis, Illinois, USA

18.4 km PM2.5: 10.1 µg/m³

Branch Street, Missouri, USA

23.4 km PM2.5: 12.6 µg/m³

Blair Street, Missouri, USA

24.0 km PM2.5: 10.3 µg/m³

What cities are near Belleville?

42 Fairview Heights 41 O'Fallon 42 Collinsville 41 East Saint Louis 42 St. Louis 42 Granite City 39 Lemay 41 Oakville 40 Mehlville 38 Affton

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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 2026-10-20T22:42 UTC.