Air Quality in Hertford, United Kingdom
Drizzle
16.4°C · 84.2% humidity
16.4°
Feels 16.4°
16
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Hertford's air quality — share it
AQI Forecast
Calibrated
5
6am
5
5
16
9am
8
6
4
12pm
3
2
1
3pm
1
1
1
6pm
0
0
0
9pm
0
0
5
12am
5
5
0
3am
0
0
Station readings
8
CAMS model
adj -49
54
54
54
54
34
34
27
27
34
27
27
27
27
27
27
34
34
34
54
54
54
34
34
34
Air Quality Index Trend
10h · 1 stnHertford'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.
84.2%
Humidity
82.1 km/h
Wind SW
1010.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.91 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Hertford?
Temperature & Precipitation
PM2.5 Trend
10h · 1 stationPM2.53.91 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
3.91
Median
4.1
Average
1.0
Low
7.2
High
PM2.5 µg/m³ · Model: 7.0 · Bias: +3.1
What is the 7-day forecast for Hertford?
08-03
34.8° 16.0°
2.0 mm
08-04
23.3° 14.0°
0.13 mm
08-05
22.7° 14.7°
0.13 mm
08-06
29.8° 14.0°
6.13 mm
08-07
26.2° 13.0°
0.44 mm
08-08
23.2° 12.9°
1.56 mm
08-09
20.1° 12.4°
Both models agree
Avg diff: 3.2°C
Where are air quality stations near Hertford?
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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 2026-08-08T08:23 UTC.