What is the air quality in Westerlo today?

The current Air Quality Index (AQI) in Westerlo is 40 (Good). PM2.5 concentration is 9.56 µg/m³.

What is the temperature in Westerlo right now?

The current temperature in Westerlo is 15.2°C (feels like 15.2°C). Humidity is 49.3% and wind speed is 60.9 km/h.

Is it safe to go outside in Westerlo?

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

Air Quality in Westerlo, Belgium

Windy

15.2°C · 49.3% humidity

15.2°

Feels 15.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

47h · 1 stn

View full history →

Westerlo'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.

49.3%

Humidity

60.9 km/h

Wind SW

1021.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.56 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Westerlo?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.59.56 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (4 stations within 25 km)

9.56

Median

9.04

Average

7.0

Low

13.17

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -3.1

What is the 7-day forecast for Westerlo?

10-21

15.2° 7.5°

1.69 mm

10-22

19.1° 7.3°

0.5 mm

10-23

11.4° 7.6°

5.44 mm

10-24

13.1° 6.4°

10-25

15.0° 7.0°

10-26

13.1° 7.6°

5.63 mm

10-27

18.0° 6.1°

0.31 mm

Both models agree Avg diff: 2.9°C

Where are air quality stations near Westerlo?

Booischot

13.3 km PM2.5: 5.1 µg/m³ PM10: 9.4 µg/m³

Aarschot, Belgium

13.7 km PM2.5: 7.9 µg/m³

Hoevenen, Belgium

18.3 km PM2.5: 8.6 µg/m³

Dessel, Belgium

23.5 km PM2.5: 7.4 µg/m³

What cities are near Westerlo?

36 Geel 40 Herentals 38 Tessenderlo 30 Aarschot 48 Heist-op-den-Berg 38 Diest 35 Kasterlee 33 Mol 39 Lille 40 Nijlen

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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 2026-10-21T10:05 UTC.