What is the air quality in Westerlo today?

The current Air Quality Index (AQI) in Westerlo is 25 (Good). PM2.5 concentration is 6.04 µg/m³.

What is the temperature in Westerlo right now?

The current temperature in Westerlo is 12.3°C (feels like 12.3°C). Humidity is 75.7% and wind speed is 44.6 km/h.

Is it safe to go outside in Westerlo?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Westerlo, Belgium

Windy

12.3°C · 75.7% humidity

12.3°

Feels 12.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

24 3am

25 6am

24 9am

25 12pm

25 3pm

27 6pm

25 9pm

25 12am

Air Quality Index Trend

49h · 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.

75.7%

Humidity

44.6 km/h

Wind WSW

1021.2 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.04 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Westerlo?

Temperature & Precipitation

PM2.5 Trend

49h · 1 station

PM2.56.04 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (3 stations within 25 km)

6.04

Median

6.2

Average

5.8

Low

7.0

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -0.0

What is the 7-day forecast for Westerlo?

06-09

17.2° 9.5°

2.25 mm

06-10

24.3° 11.9°

0.88 mm

06-11

25.1° 14.7°

2.38 mm

06-12

19.4° 12.3°

0.06 mm

06-13

24.5° 7.3°

0.06 mm

06-14

23.0° 12.0°

0.44 mm

06-15

18.2° 11.9°

2.87 mm

Both models agree Avg diff: 3.5°C

Where are air quality stations near Westerlo?

Aarschot, Belgium

13.7 km PM2.5: 2.4 µg/m³

Hoevenen, Belgium

18.3 km PM2.5: 5.0 µg/m³

Dessel, Belgium

23.5 km PM2.5: 5.3 µg/m³

What cities are near Westerlo?

26 Geel 26 Herentals 27 Tessenderlo 24 Aarschot 24 Heist-op-den-Berg 27 Diest 27 Kasterlee 27 Mol 26 Lille 28 Nijlen

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-06-09T04:23 UTC.