Air Quality in Westerlo, Belgium
Windy
20.0°C · 46.2% humidity
20.0°
Feels 20.0°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Westerlo's air quality — share it
AQI Forecast
Calibrated
20
9am
21
24
21
12pm
21
21
21
3pm
21
21
21
6pm
21
21
21
9pm
21
28
28
12am
48
48
48
3am
28
28
28
6am
28
28
Station readings
20
20
24
24
CAMS model
adj -6
27
27
27
27
27
27
27
27
27
27
27
27
27
27
34
34
54
54
54
34
34
34
34
34
Air Quality Index Trend
41h · 3 stnWesterlo's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.
46.2%
Humidity
41.6 km/h
Wind S
1020.0 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.14 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Westerlo?
Temperature & Precipitation
PM2.5 Trend
41h · 3 stationsPM2.55.14 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX7.9
Very High
Station readings (4 stations within 25 km)
5.14
Median
5.17
Average
3.4
Low
7.0
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +1.0
What is the 7-day forecast for Westerlo?
09-05
20.0° 10.3°
09-06
22.0° 13.5°
1.31 mm
09-07
19.9° 12.5°
11.87 mm
09-08
22.0° 14.5°
7.38 mm
09-09
18.5° 9.9°
0.81 mm
09-10
23.2° 12.5°
0.06 mm
09-11
14.9° 9.8°
0.25 mm
Both models agree
Avg diff: 2.7°C
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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 2026-09-05T10:58 UTC.