What is the air quality in Waterloo today?

The current Air Quality Index (AQI) in Waterloo is 31 (Good). PM2.5 concentration is 7.42 µg/m³.

What is the temperature in Waterloo right now?

The current temperature in Waterloo is 15.3°C (feels like 15.3°C). Humidity is 45.4% and wind speed is 65.3 km/h.

Is it safe to go outside in Waterloo?

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

Air Quality in Waterloo, Belgium

Windy

15.3°C · 45.4% humidity

15.3°

Feels 15.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

11 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings 44h ago

AQI 45

PM2.5 10.8 µg/m³ · 44h ago

Air Quality Index Trend

45h · 17 stn

View full history →

Waterloo'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.

45.4%

Humidity

65.3 km/h

Wind SW

1021.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.42 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Waterloo?

Temperature & Precipitation

PM2.5 Trend

45h · 17 stations

PM2.57.42 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (11 stations within 25 km)

7.42

Median

8.25

Average

5.1

Low

15.9

High

PM2.5 µg/m³ · Model: 6.5 · Bias: -0.9

What is the 7-day forecast for Waterloo?

10-21

15.3° 7.7°

0.81 mm

10-22

19.4° 6.5°

10-23

10.2° 9.0°

5.25 mm

10-24

12.9° 6.9°

10-25

14.2° 6.8°

0.31 mm

10-26

13.1° 7.3°

1.63 mm

10-27

18.7° 5.7°

0.44 mm

Both models agree Avg diff: 3.0°C

Where are air quality stations near Waterloo?

rixensart

6.7 km PM2.5: 5.1 µg/m³ PM10: 9.0 µg/m³

Ukkel, Belgium

9.5 km PM2.5: 8.2 µg/m³

brussel (regentlaan)

14.5 km PM2.5: 6.4 µg/m³ PM10: 15.0 µg/m³

Sint-jans-molenbeek, Belgium

15.7 km PM2.5: 9.4 µg/m³

Sint-jans-molenbeek, Belgium

15.7 km PM2.5: 15.9 µg/m³

Sint-agatha-berchem, Belgium

17.7 km PM2.5: 7.0 µg/m³

Sint-agatha-berchem, Belgium

17.7 km PM2.5: 7.7 µg/m³

Voorhaven (haren), Belgium

18.8 km PM2.5: 9.1 µg/m³

Voorhaven (haren), Belgium

18.8 km PM2.5: 7.7 µg/m³

Neder-over-heembeek, Belgium

20.1 km PM2.5: 8.9 µg/m³

What cities are near Waterloo?

32 Braine-l'Alleud 35 Sint-Genesius-Rode 23 Rixensart 36 Beersel 35 Watermael-Boitsfort 35 Uccle 35 Auderghem 30 Overijse 36 Halle 39 Forest

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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.