What is the air quality in Waterdown today?

The current Air Quality Index (AQI) in Waterdown is 21 (Good). PM2.5 concentration is 5.09 µg/m³.

What is the temperature in Waterdown right now?

The current temperature in Waterdown is 4.0°C (feels like -1.6°C). Humidity is 78.4% and wind speed is 34.5 km/h.

Is it safe to go outside in Waterdown?

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

Air Quality in Waterdown, Canada

Cloudy

4.0°C · 78.4% humidity

4.0°

Feels -1.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

9 stations

Nearby Monitoring Stations

AQI Forecast

22 4pm

21 7pm

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Station readings

Air Quality Index Trend

47h · 7 stn

View full history →

Waterdown's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

78.4%

Humidity

34.5 km/h

Wind ESE

1029.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

5.09 µg/m³

PM10▲

41.2 µg/m³

050100150200300500

What is the weather forecast for Waterdown?

Temperature & Precipitation

PM2.5 Trend

47h · 7 stations

PM2.55.09 µg/m³ ✓ WHO

Good

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

Station readings (9 stations within 25 km)

5.09

Median

5.1

Average

2.9

Low

6.2

High

PM2.5 µg/m³ · Model: 19.2 · Bias: +14.1

What is the 7-day forecast for Waterdown?

10-20

6.6° 2.7°

10-21

19.5° 4.0°

10-22

16.1° 4.9°

10-23

12.7° 1.4°

1.12 mm

10-24

15.8° 2.5°

0.13 mm

10-25

11.9° 4.8°

1.25 mm

10-26

8.4° 4.6°

3.81 mm

Both models agree Avg diff: 4.3°C

Where are air quality stations near Waterdown?

Burlington, Ontario, Canada

6.8 km PM2.5: 5.8 µg/m³

Burlington, Ontario, Canada

6.8 km PM2.5: 6.0 µg/m³

Burlington, Ontario, Canada

6.8 km PM2.5: 6.2 µg/m³

Hamilton Downtown, Ontario, Canada

8.6 km PM2.5: 4.6 µg/m³

Hamilton Downtown, Ontario, Canada

8.6 km PM2.5: 5.0 µg/m³

Hamilton Downtown, Ontario, Canada

8.6 km PM2.5: 4.1 µg/m³

Hamilton Downtown, Ontario, Canada

8.6 km PM2.5: 4.8 µg/m³

Hamilton West, Ontario, Canada

8.7 km PM2.5: 5.3 µg/m³

Hamilton West, Ontario, Canada

8.7 km PM2.5: 5.3 µg/m³

Hamilton West, Ontario, Canada

8.7 km PM2.5: 5.3 µg/m³

What cities are near Waterdown?

23 Burlington 18 Hamilton 18 Ancaster 20 Stoney Creek 24 Milton 23 Oakville 22 Grimsby 22 Mississauga 20 Fiddlesticks 23 Christopher-Champlain

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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 2026-10-20T23:40 UTC.