Air Quality in Hamilton, Canada

Drizzle
15.5°C · 91.8% humidity
15.5°
Feels 15.5°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
16 5am
20
20
20 8am
20
20
20 11am
20
20
20 2pm
20
20
20 5pm
20
20
20 8pm
29
29
29 11pm
29
29
22 2am
22
22
Station readings
16
20
20
20
CAMS model adj -5
24
24
24
24
25
25
25
25
25
25
25
25
25
25
25
25
34
34
34
34
34
27
27
27
AD 728×90

Air Quality Index Trend

48h · 4 stn

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

91.8%
Humidity
51.5 km/h
Wind N
1012.8 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

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

What is the weather forecast for Hamilton?

Temperature & Precipitation

PM2.5 Trend

48h · 4 stations
PM2.54.77 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (10 stations within 25 km)
4.77
Median
4.32
Average
3.6
Low
5.0
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +1.1

What is the 7-day forecast for Hamilton?

09-05
25.1° 14.1°
0.81 mm
09-06
24.6° 15.8°
0.19 mm
09-07
21.0° 14.2°
0.19 mm
09-08
23.7° 13.2°
5.69 mm
09-09
26.8° 13.1°
2.38 mm
09-10
23.3° 13.5°
0.56 mm
09-11
27.7° 11.4°
0.81 mm
Both models agree Avg diff: 3.8°C

Where are air quality stations near Hamilton?

21
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 5.0 µg/m³
18
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 4.3 µg/m³
21
Hamilton
1.3 km PM2.5: 5.0 µg/m³
21
Hamilton
1.3 km PM2.5: 5.0 µg/m³
15
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 3.6 µg/m³
15
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 3.6 µg/m³
22
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 5.3 µg/m³
21
Hamilton West, Ontario, Canada
4.8 km PM2.5: 5.0 µg/m³
21
Hamilton West, Ontario, Canada
4.8 km PM2.5: 5.0 µg/m³
25
Burlington, Ontario, Canada
8.2 km PM2.5: 6.0 µg/m³

What cities are near Hamilton?

18 Stoney Creek 18 Waterdown 19 Ancaster 17 Burlington 17 Grimsby 19 Oakville 14 Milton 23 Brantford 15 Christopher-Champlain 11 Fiddlesticks
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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 2026-09-05T12:11 UTC.