Air Quality in Harrow, United Kingdom

Windy
18.4°C · 49.7% humidity
18.4°
Feels 18.4°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
35 stations

Nearby Monitoring Stations

AQI Forecast
27 3pm
25
25
37 6pm
36
33
31 9pm
30
29
29 12am
28
26
26 3am
25
25
25 6am
25
27
27 9am
27
27
27 12pm
34
34
AD 728×90

Air Quality Index Trend

47h · 23 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.

49.7%
Humidity
77.7 km/h
Wind NE
1023.2 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
37
8.92 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Harrow?

Temperature & Precipitation

PM2.5 Trend

47h · 23 stations
PM2.58.92 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (35 stations within 25 km)
8.92
Median
8.01
Average
1.45
Low
14.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -2.7

What is the 7-day forecast for Harrow?

05-29
18.4° 12.6°
0.62 mm
05-30
19.7° 12.8°
0.06 mm
05-31
21.8° 11.7°
06-01
22.2° 11.2°
0.19 mm
06-02
20.6° 13.6°
2.12 mm
06-03
18.5° 12.3°
0.13 mm
06-04
30.5° 19.3°
4.63 mm
Both models agree Avg diff: 3.1°C

Where are air quality stations near Harrow?

33
Harlesden HP1
7.8 km PM2.5: 7.9 µg/m³
30
Harlesden LP1
7.9 km PM2.5: 7.3 µg/m³
34
Harlesden HP2
8.0 km PM2.5: 8.1 µg/m³
36
Harlesden LP2
8.1 km PM2.5: 8.6 µg/m³
21
Hounslow Brentford, United Kingdom
10.0 km PM2.5: 5.0 µg/m³
42
Hounslow Brentford, United Kingdom
10.0 km PM2.5: 10.1 µg/m³
21
London N. Kensington, United Kingdom
10.4 km PM2.5: 5.0 µg/m³
21
London N. Kensington, United Kingdom
10.4 km PM2.5: 5.0 µg/m³
52
Kensington and Chelsea - North Ken, new
10.4 km PM2.5: 12.7 µg/m³
73
Hounslow Chiswick, United Kingdom
10.9 km PM2.5: 22.6 µg/m³

What cities are near Harrow?

37 Wealdstone 39 Brent 40 Wembley 37 Pinner 36 Northolt 35 Greenford 36 South Ruislip 36 Ruislip 26 Harlesden 34 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 2026-05-29T17:00 UTC.