What is the air quality in Stouffville today?

The current Air Quality Index (AQI) in Stouffville is 22 (Good). PM2.5 concentration is 5.3 µg/m³.

What is the temperature in Stouffville right now?

The current temperature in Stouffville is 3.5°C (feels like -2.2°C). Humidity is 63.5% and wind speed is 34.2 km/h.

Is it safe to go outside in Stouffville?

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

Air Quality in Stouffville, Canada

Partly Cloudy

3.5°C · 63.5% humidity

3.5°

Feels -2.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

24 5pm

22 8pm

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Station readings

Air Quality Index Trend

48h · 3 stn

View full history →

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

63.5%

Humidity

34.2 km/h

Wind SSE

1029.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

5.3 µg/m³

PM10▲

27.4 µg/m³

050100150200300500

What is the weather forecast for Stouffville?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations

PM2.55.3 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (4 stations within 25 km)

5.3

Median

5.12

Average

4.1

Low

7.0

High

PM2.5 µg/m³ · Model: 8.2 · Bias: +2.9

What is the 7-day forecast for Stouffville?

10-21

17.7° 3.5°

10-22

12.4° 5.4°

10-23

11.3° 1.0°

3.94 mm

10-24

14.2° 1.6°

0.81 mm

10-25

11.6° 3.2°

3.75 mm

10-26

7.9° 4.1°

11.5 mm

10-27

8.7° 2.0°

0.38 mm

Both models agree Avg diff: 4.3°C

Where are air quality stations near Stouffville?

Newmarket, Ontario, Canada

20.6 km PM2.5: 5.3 µg/m³

Newmarket, Ontario, Canada

20.6 km PM2.5: 5.3 µg/m³

Newmarket, Ontario, Canada

20.6 km PM2.5: 5.8 µg/m³

Newmarket, Ontario, Canada

20.6 km PM2.5: 7.2 µg/m³

Toronto East, Ontario, Canada

24.4 km PM2.5: 5.3 µg/m³

Toronto East, Ontario, Canada

24.4 km PM2.5: 5.3 µg/m³

Toronto East, Ontario, Canada

24.4 km PM2.5: 5.3 µg/m³

Toronto East, Ontario, Canada

24.4 km PM2.5: 4.1 µg/m³

Toronto East, Ontario, Canada

24.4 km PM2.5: 4.3 µg/m³

Toronto North, Ontario, Canada

24.6 km PM2.5: 4.8 µg/m³

What cities are near Stouffville?

29 Whitchurch-Stouffville 18 Markham 20 Pickering 18 Milliken 19 Malvern 28 Aurora 19 Agincourt North 20 Uxbridge 18 Steeles 18 Richmond Hill

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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 2026-10-21T00:32 UTC.