Air Quality in Hertford, United Kingdom
Windy
13.9°C · 66.5% humidity
13.9°
Feels 13.9°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Hertford's air quality — share it
AQI Forecast
Calibrated
6
3am
6
6
15
6am
6
5
3
9am
2
2
1
12pm
1
1
0
3pm
0
0
0
6pm
0
0
0
9pm
0
0
0
12am
0
0
Station readings
4
6
12
CAMS model
adj -48
54
54
54
54
34
27
27
27
27
27
27
27
27
27
27
27
25
25
25
25
25
25
25
25
Air Quality Index Trend
30h · 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.
66.5%
Humidity
50.9 km/h
Wind ENE
1016.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
3.59 µg/m³
PM10▲
20.55 µg/m³
050100150200300500
What is the weather forecast for Hertford?
Temperature & Precipitation
PM2.5 Trend
30h · 1 stationPM2.53.59 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
3.59
Median
3.52
Average
0.2
Low
8.2
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +6.2
What is the 7-day forecast for Hertford?
07-22
23.8° 13.4°
0.19 mm
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°
Both models agree
Avg diff: 2.7°C
Where are air quality stations near Hertford?
12
united-kingdom-bishops-stortford-edens-close
15
Haringey Roadside, United Kingdom
8
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 2026-07-22T05:40 UTC.