Air Quality in London, Canada
Drizzle
27.9°C · 58.2% humidity
27.9°
Feels 31.1°
145
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
London's air quality — share it
AQI Forecast
Calibrated
55
10am
55
55
145
1pm
119
101
88
4pm
79
70
65
7pm
62
59
57
10pm
56
55
55
1am
54
54
54
4am
53
55
55
7am
62
52
Station readings
18h ago
AQI 99
PM2.5 34.9 µg/m³ · 18h ago
CAMS model
adj +28
27
27
27
27
27
27
27
27
25
25
25
25
25
25
25
25
25
25
25
25
27
27
34
24
Air Quality Index Trend
8h · 1 stnLondon's air quality is shaped by road traffic, particularly diesel vehicles, and residential heating. Pollution levels tend to peak during winter temperature inversions and periods of low wind. Current PM2.5 concentration in London is 3.5× the WHO 24-hour guideline of 15 µg/m³.
58.2%
Humidity
36.1 km/h
Wind ESE
1013.8 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
53.22 µg/m³
PM10
109.3 µg/m³
050100150200300500
What is the weather forecast for London?
Temperature & Precipitation
PM2.5 Trend
8h · 1 stationPM2.553.22 µg/m³
×3.5 WHO
Unhealthy for sensitive groups
PM10109.3 µg/m³
Moderate
UV INDEX14.9
Extreme
What is the 7-day forecast for London?
07-21
27.9° 20.5°
8.25 mm
07-22
26.1° 18.5°
8.0 mm
07-23
21.6° 15.2°
07-24
23.5° 13.4°
07-25
22.6° 15.6°
3.88 mm
07-26
27.8° 15.8°
2.0 mm
07-27
29.1° 20.5°
0.38 mm
Both models agree
Avg diff: 3.3°C
Where are air quality stations near London?
What cities are near London?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:19 UTC.