What is the air quality in Harlow today?

The current Air Quality Index (AQI) in Harlow is 21 (Good). PM2.5 concentration is 5.0 µg/m³.

What is the temperature in Harlow right now?

The current temperature in Harlow is 8.3°C (feels like 4.3°C). Humidity is 90.5% and wind speed is 31.2 km/h.

Is it safe to go outside in Harlow?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Harlow, United Kingdom

Drizzle

8.3°C · 90.5% humidity

8.3°

Feels 4.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast Calibrated

9 10pm

21 1am

13 4am

11 7am

10 10am

9 1pm

9 4pm

9 7pm

Station readings 4h ago

AQI 8

PM2.5 2.0 µg/m³ · 4h ago

CAMS model adj -16

Air Quality Index Trend

26h · 1 stn

View full history →

Harlow'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.

90.5%

Humidity

31.2 km/h

Wind WNW

1020.0 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Harlow?

Temperature & Precipitation

PM2.5 Trend

26h · 1 station

PM2.55.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

5.0

Median

5.0

Average

5.0

Low

5.0

High

PM2.5 µg/m³ · Model: 5.9 · Bias: +0.9

What is the 7-day forecast for Harlow?

06-09

17.3° 8.3°

0.25 mm

06-10

13.8° 11.6°

9.06 mm

06-11

26.0° 14.3°

2.56 mm

06-12

21.2° 10.1°

06-13

22.6° 9.4°

0.19 mm

06-14

18.9° 10.9°

4.87 mm

06-15

16.1° 10.4°

4.5 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Harlow?

–

united-kingdom-bishops-stortford-edens-close

11.3 km 16.0°C 49.0% RH PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

Haringey Roadside, United Kingdom

23.3 km PM2.5: 3.1 µg/m³

109

Haringey Roadside, United Kingdom

23.3 km PM2.5: 38.7 µg/m³

Waltham Forest Dawlish Rd, United Kingdom

25.1 km PM2.5: 3.1 µg/m³

Waltham Forest Dawlish Rd, United Kingdom

25.1 km PM2.5: 33.5 µg/m³

What cities are near Harlow?

21 Hoddesdon 21 Ware 24 Bishops Stortford 32 Waltham Abbey 32 Cheshunt 21 Hertford 32 Enfield Lock 32 Chingford 29 Ponders End 27 Enfield Town

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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 2026-06-09T00:19 UTC.