What is the air quality in Harpenden today?

The current Air Quality Index (AQI) in Harpenden is 35 (Good). PM2.5 concentration is 8.32 µg/m³.

What is the temperature in Harpenden right now?

The current temperature in Harpenden is 11.4°C (feels like 11.4°C). Humidity is 81.6% and wind speed is 43.1 km/h.

Is it safe to go outside in Harpenden?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Harpenden, United Kingdom

Drizzle

11.4°C · 81.6% humidity

11.4°

Feels 11.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

45h · 1 stn

View full history →

Harpenden'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.

81.6%

Humidity

43.1 km/h

Wind NNE

1019.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.32 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Harpenden?

Temperature & Precipitation

PM2.5 Trend

45h · 1 station

PM2.58.32 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Harpenden?

10-21

11.4° 7.1°

0.63 mm

10-22

17.8° 7.5°

10-23

12.6° 8.4°

10.69 mm

10-24

13.3° 7.6°

10-25

14.8° 8.8°

8.19 mm

10-26

9.8° 7.5°

0.62 mm

10-27

17.1° 4.8°

1.31 mm

Both models agree Avg diff: 3.3°C

Where are air quality stations near Harpenden?

Great Missenden

27.5 km PM2.5: 1.8 µg/m³ PM10: 1.8 µg/m³

Enfield - Bowes Primary School, United Kingdom

27.6 km PM2.5: 1.2 µg/m³

Haringey Roadside, United Kingdom

31.3 km PM2.5: 27.3 µg/m³

Haringey Roadside, United Kingdom

31.3 km PM2.5: 3.1 µg/m³

Haringey Roadside, United Kingdom

31.3 km PM2.5: 13.1 µg/m³

Haringey Roadside, United Kingdom

31.3 km PM2.5: 14.0 µg/m³

What cities are near Harpenden?

18 St Albans 32 Luton 8 Hemel Hempstead 5 Welwyn Garden City 17 Hatfield 8 Dunstable 35 Stevenage 20 North Watford 35 Hitchin 8 Berkhamsted

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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 2026-10-21T13:14 UTC.