Air Quality in Richmond Hill, Canada

Windy
14.2°C · 93.8% humidity
14.2°
Feels 14.2°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
12 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
10 5am
10
10
20 8am
17
15
15 11am
14
13
12 2pm
11
11
10 5pm
10
10
10 8pm
11
11
11 11pm
11
11
11 2am
11
11
Station readings
3
4
4
21
CAMS model adj -14
24
24
24
24
24
24
25
25
25
25
24
24
24
24
24
24
25
25
25
25
25
25
25
25
AD 728×90

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.

93.8%
Humidity
46.9 km/h
Wind NNW
1013.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.74 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Richmond Hill?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations
PM2.54.74 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (12 stations within 25 km)
4.74
Median
3.98
Average
0.86
Low
7.2
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +1.2

What is the 7-day forecast for Richmond Hill?

09-05
22.3° 11.7°
0.06 mm
09-06
23.8° 13.1°
2.0 mm
09-07
22.2° 13.2°
09-08
22.1° 13.4°
1.31 mm
09-09
25.1° 10.7°
0.31 mm
09-10
21.8° 12.0°
3.69 mm
09-11
23.2° 9.4°
0.31 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Richmond Hill?

21
NASA GSFC Rutgers Calib. N20
9.4 km PM2.5: 5.1 µg/m³
20
Toronto North, Ontario, Canada
10.1 km PM2.5: 4.8 µg/m³
21
Toronto North, Ontario, Canada
10.1 km PM2.5: 5.0 µg/m³
30
Toronto North, Ontario, Canada
10.1 km PM2.5: 7.2 µg/m³
21
Toronto East, Ontario, Canada
19.0 km PM2.5: 5.0 µg/m³
17
Toronto East, Ontario, Canada
19.0 km PM2.5: 4.1 µg/m³
6
Toronto East, Ontario, Canada
19.0 km PM2.5: 1.4 µg/m³
12
Newmarket, Ontario, Canada
19.6 km PM2.5: 2.9 µg/m³
25
Newmarket, Ontario, Canada
19.6 km PM2.5: 6.0 µg/m³
18
Newmarket, Ontario, Canada
19.6 km PM2.5: 4.3 µg/m³

What cities are near Richmond Hill?

20 Vaughan 25 Newtonbrook East 25 Newtonbrook West 20 Hillcrest Village 23 Westminster-Branson 19 Steeles 25 Willowdale West 23 Bayview Village 25 Willowdale East 20 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 2026-09-05T12:12 UTC.