Air Quality in Hertford, United Kingdom
Partly Cloudy
18.4°C · 53.3% humidity
18.4°
Feels 18.4°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Hertford's air quality — share it
AQI Forecast
Calibrated
8
2am
8
8
19
5am
16
16
14
8am
13
12
18
11am
18
18
11
2pm
10
10
10
5pm
10
10
10
8pm
17
37
37
11pm
37
37
Station readings
15
6
8
9
CAMS model
adj -17
25
25
25
25
25
27
27
27
27
34
34
34
27
27
27
27
27
27
27
34
54
54
54
54
Air Quality Index Trend
40h · 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.
53.3%
Humidity
28.1 km/h
Wind S
1019.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.58 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Hertford?
Temperature & Precipitation
PM2.5 Trend
40h · 1 stationPM2.54.58 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
4.58
Median
4.76
Average
1.82
Low
7.7
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.4
What is the 7-day forecast for Hertford?
07-23
19.4° 15.4°
2.0 mm
07-24
22.1° 14.8°
3.0 mm
07-25
29.2° 13.3°
0.13 mm
07-26
18.2° 13.3°
2.38 mm
07-27
26.9° 16.4°
4.13 mm
07-28
25.7° 16.6°
07-29
26.1° 16.7°
0.06 mm
Both models agree
Avg diff: 3.1°C
Where are air quality stations near Hertford?
9
united-kingdom-bishops-stortford-edens-close
72
Haringey Roadside, United Kingdom
21
Haringey Roadside, United Kingdom
What cities are 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 2026-07-23T04:52 UTC.