Air Quality in Harrow, United Kingdom

Windy
19.2°C · 44.4% humidity
19.2°
Feels 19.2°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
19 stations

Nearby Monitoring Stations

AQI Forecast
54 12am
54
54
52 3am
54
54
54 6am
34
27
27 9am
27
27
27 12pm
27
27
27 3pm
27
27
27 6pm
25
25
25 9pm
25
25
AD 728×90

Air Quality Index Trend

48h · 6 stn

Harrow's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

44.4%
Humidity
50.2 km/h
Wind NE
1014.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
52
12.45 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Harrow?

Temperature & Precipitation

PM2.5 Trend

48h · 6 stations
PM2.512.45 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (19 stations within 25 km)
12.45
Median
9.72
Average
6.0
Low
24.9
High
PM2.5 µg/m³ · Model: 9.75 · Bias: -2.7

What is the 7-day forecast for Harrow?

07-22
24.8° 16.9°
07-23
20.0° 18.3°
0.62 mm
07-24
22.4° 16.0°
1.94 mm
07-25
29.4° 14.1°
0.69 mm
07-26
20.9° 14.4°
1.69 mm
07-27
28.1° 17.2°
2.0 mm
07-28
27.8° 19.2°
Both models agree Avg diff: 2.6°C

Where are air quality stations near Harrow?

36
Harlesden HP1
7.8 km PM2.5: 8.7 µg/m³
33
Harlesden LP1
7.9 km PM2.5: 7.9 µg/m³
38
Harlesden HP2
8.0 km PM2.5: 9.2 µg/m³
42
Harlesden LP2
8.1 km PM2.5: 10.2 µg/m³
38
Hounslow Brentford, United Kingdom
10.0 km PM2.5: 9.1 µg/m³
40
Hounslow Brentford, United Kingdom
10.0 km PM2.5: 9.6 µg/m³
12
London N. Kensington, United Kingdom
10.4 km PM2.5: 2.9 µg/m³
17
London N. Kensington, United Kingdom
10.4 km PM2.5: 4.1 µg/m³
21
Kensington and Chelsea - North Ken, new
10.4 km PM2.5: 5.0 µg/m³
30
Hounslow Chiswick, United Kingdom
10.9 km PM2.5: 7.2 µg/m³

What cities are near Harrow?

50 Wealdstone 55 Brent 56 Wembley 48 Pinner 48 Northolt 46 Greenford 46 South Ruislip 45 Ruislip 40 Harlesden 43 West Ealing
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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 2026-07-22T02:14 UTC.