What is the air quality in Herstal today?

The current Air Quality Index (AQI) in Herstal is 16 (Good). PM2.5 concentration is 3.8 µg/m³.

What is the temperature in Herstal right now?

The current temperature in Herstal is 15.4°C (feels like 15.4°C). Humidity is 48.9% and wind speed is 53.0 km/h.

Is it safe to go outside in Herstal?

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

Air Quality in Herstal, Belgium

Windy

15.4°C · 48.9% humidity

15.4°

Feels 15.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

14 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

23h · 1 stn

View full history →

Herstal'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.

48.9%

Humidity

53.0 km/h

Wind SW

1021.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Herstal?

Temperature & Precipitation

PM2.5 Trend

23h · 1 station

PM2.53.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (14 stations within 25 km)

3.8

Median

6.02

Average

3.1

Low

11.5

High

PM2.5 µg/m³ · Model: 8.2 · Bias: +4.4

Both models agree Avg diff: 3.2°C

Where are air quality stations near Herstal?

Herstal, Belgium

0.7 km PM2.5: 5.5 µg/m³

liege (av m destenay)

4.7 km PM2.5: 6.0 µg/m³ PM10: 11.0 µg/m³

Liege

4.7 km PM2.5: 5.0 µg/m³

Angleur, Belgium

5.9 km PM2.5: 1.4 µg/m³

Angleur, Belgium

5.9 km PM2.5: 3.1 µg/m³

Jemeppe-sur-meuse, Belgium

9.0 km PM2.5: 6.7 µg/m³

liege (aéroport 1)

10.9 km PM2.5: 2.2 µg/m³ PM10: 6.0 µg/m³

Eijsden-Trichterweg

14.4 km PM2.5: 5.0 µg/m³ PM10: 9.0 µg/m³

liége (aéroport 2)

15.4 km PM2.5: 7.0 µg/m³ PM10: 10.0 µg/m³

Engis, Belgium

18.3 km PM2.5: 7.7 µg/m³

What cities are near Herstal?

18 Grivegnée 27 Liège 22 Oupeye 20 Fléron 25 Ans 38 Saint-Nicolas 20 Chaudfontaine 23 Visé 22 Soumagne 22 Herve

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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 2026-10-21T10:48 UTC.