Air Quality in Richmond Hill, Canada

Windy
3.8°C · 65.6% humidity
3.8°
Feels -2.4°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
24 4pm
23
23
20 7pm
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Station readings
24
23
23
22

Air Quality Index Trend

48h · 5 stn

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

65.6%
Humidity
41.2 km/h
Wind SSE
1028.9 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
20
4.8 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Richmond Hill?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations
PM2.54.8 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
Station readings (7 stations within 25 km)
4.8
Median
4.91
Average
3.8
Low
5.8
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +8.7
Both models agree Avg diff: 4.6°C

Where are air quality stations near Richmond Hill?

17
NASA GSFC Rutgers Calib. N20
9.4 km PM2.5: 4.1 µg/m³
22
Toronto North, Ontario, Canada
10.1 km PM2.5: 5.3 µg/m³
23
Toronto North, Ontario, Canada
10.1 km PM2.5: 5.5 µg/m³
20
Toronto North, Ontario, Canada
10.1 km PM2.5: 4.8 µg/m³
22
Toronto North, Ontario, Canada
10.1 km PM2.5: 5.3 µg/m³
22
Toronto East, Ontario, Canada
19.0 km PM2.5: 5.3 µg/m³
18
Toronto East, Ontario, Canada
19.0 km PM2.5: 4.3 µg/m³
22
Toronto East, Ontario, Canada
19.0 km PM2.5: 5.3 µg/m³
22
Toronto East, Ontario, Canada
19.0 km PM2.5: 5.3 µg/m³
30
Newmarket, Ontario, Canada
19.6 km PM2.5: 7.2 µg/m³

What cities are near Richmond Hill?

19 Vaughan 22 Newtonbrook East 21 Newtonbrook West 21 Hillcrest Village 19 Westminster-Branson 21 Steeles 22 Willowdale West 21 Bayview Village 22 Willowdale East 21 Don Valley Village
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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 2026-10-20T23:42 UTC.