Air Quality in Bolton, Canada

Windy
21.6°C · 36.5% humidity
21.6°
Feels 21.6°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
46 4pm
40
40
35 7pm
58
61
63 10pm
76
77
77 1am
95
95
95 4am
96
96
79 7am
67
40
38 10am
38
38
38 1pm
38
38
Station readings
46
40
40
42
CAMS model adj +13
27
34
34
34
54
54
54
66
66
66
83
83
83
83
83
66
54
27
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

28h · 3 stn

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

36.5%
Humidity
66.6 km/h
Wind NNW
1014.0 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
35
8.42 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Bolton?

Temperature & Precipitation

PM2.5 Trend

28h · 3 stations
PM2.58.42 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (3 stations within 25 km)
8.42
Median
8.4
Average
8.2
Low
8.6
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -0.2

What is the 7-day forecast for Bolton?

08-03
23.3° 17.0°
2.38 mm
08-04
24.9° 16.9°
1.06 mm
08-05
33.1° 14.4°
08-06
28.2° 18.6°
6.69 mm
08-07
28.2° 12.9°
2.87 mm
08-08
34.3° 16.8°
1.06 mm
08-09
35.6° 18.7°
1.75 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Bolton?

53
Brampton, Ontario, Canada
20.4 km PM2.5: 13.1 µg/m³
95
Brampton, Ontario, Canada
20.4 km PM2.5: 33.0 µg/m³
36
Brampton, Ontario, Canada
20.4 km PM2.5: 8.6 µg/m³
53
Brampton, Ontario, Canada
20.4 km PM2.5: 13.1 µg/m³
42
Brampton, Ontario, Canada
20.4 km PM2.5: 10.1 µg/m³
38
Brampton, Ontario, Canada
20.4 km PM2.5: 9.1 µg/m³
36
Brampton, Ontario, Canada
20.4 km PM2.5: 8.6 µg/m³
40
NASA GSFC Rutgers Calib. N20
23.7 km PM2.5: 9.6 µg/m³
55
Toronto West, Ontario, Canada
24.5 km PM2.5: 14.0 µg/m³
53
Toronto West, Ontario, Canada
24.5 km PM2.5: 13.1 µg/m³

What cities are near Bolton?

40 Mount Olive-Silverstone-Jamestown 47 Vaughan 15 Caledon 41 Humbermede 38 West Humber-Clairville 43 Black Creek 38 Brampton 41 Glenfield-Jane Heights 45 York University Heights 49 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 2026-08-07T23:45 UTC.