Air Quality in Harpenden, United Kingdom
Drizzle
8.6°C · 86.8% humidity
8.6°
Feels 3.5°
4
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
Calibrated
13
3pm
17
12
2
6pm
6
6
19
9pm
19
19
6
12am
6
6
6
3am
6
6
6
6am
6
19
19
9am
19
19
19
12pm
19
19
Station readings
13
17
12
2
CAMS model
adj -6
12
12
12
12
12
12
25
25
25
12
12
12
12
12
12
12
12
25
25
25
25
25
25
25
PM2.5 Trend (24h)
30h · 1 station86.8%
Humidity
50.6 km/h
Wind NW
1011.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for Harpenden?
Temperature & Precipitation
PM2.51.02 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Harpenden?
04-09
10.7° 3.6°
8.69 mm
04-10
12.5° 4.1°
0.06 mm
04-11
8.9° 2.3°
5.31 mm
04-12
10.3° 3.1°
1.0 mm
04-13
12.1° 3.7°
1.31 mm
04-14
12.6° 3.3°
04-15
13.9° 5.5°
0.19 mm
Both models agree
Avg diff: 1.9°C
Where are air quality stations near Harpenden?
7
Great Missenden
41
Enfield - Bowes Primary School, United Kingdom
25
Enfield - Bowes Primary School, United Kingdom
What cities are near Harpenden?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:44 UTC.