Air Quality in Hertford, United Kingdom
Windy
16.3°C · 65.2% humidity
16.3°
Feels 16.3°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Hertford's air quality — share it
AQI Forecast
Calibrated
9
4pm
9
9
21
7pm
18
16
15
10pm
14
13
12
1am
10
10
9
4am
9
9
9
7am
11
11
11
10am
11
11
18
1pm
18
18
Station readings
7
4
CAMS model
adj -16
25
25
25
27
27
27
27
27
27
27
25
25
25
25
25
25
27
27
27
27
27
34
34
34
Air Quality Index Trend
39h · 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.
65.2%
Humidity
77.5 km/h
Wind NE
1023.8 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.12 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Hertford?
Temperature & Precipitation
PM2.5 Trend
39h · 1 stationPM2.55.12 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
Station readings (3 stations within 25 km)
5.12
Median
5.3
Average
1.0
Low
10.1
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +1.4
What is the 7-day forecast for Hertford?
05-29
16.3° 12.1°
1.38 mm
05-30
17.9° 11.5°
0.44 mm
05-31
19.3° 8.6°
06-01
19.9° 9.8°
0.44 mm
06-02
20.0° 12.6°
2.25 mm
06-03
16.9° 10.9°
0.06 mm
06-04
28.8° 17.5°
4.63 mm
Both models agree
Avg diff: 3.4°C
Where are air quality stations near Hertford?
4
united-kingdom-bishops-stortford-edens-close
18
Haringey Roadside, United Kingdom
26
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 2026-05-29T18:44 UTC.