Air Quality in Alton, United Kingdom
Windy
15.6°C · 50.1% humidity
15.6°
Feels 15.6°
8
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Alton's air quality — share it
AQI Forecast
Calibrated
15
3am
15
15
8
6am
9
7
5
9am
3
2
2
12pm
1
1
1
3pm
0
0
0
6pm
0
0
0
9pm
0
0
0
12am
0
0
Station readings
8
8
8
CAMS model
adj -39
54
54
54
34
27
25
25
25
25
25
25
25
27
27
27
27
27
27
27
27
25
25
25
27
Air Quality Index Trend
47h · 1 stnAlton'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.
50.1%
Humidity
59.0 km/h
Wind ENE
1014.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.94 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Alton?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.51.94 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
1.94
Median
1.94
Average
1.94
Low
1.94
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +5.4
What is the 7-day forecast for Alton?
07-22
24.6° 14.4°
0.13 mm
07-23
20.8° 15.9°
0.13 mm
07-24
20.2° 14.6°
1.37 mm
07-25
29.4° 11.8°
0.06 mm
07-26
21.9° 11.8°
1.38 mm
07-27
26.3° 16.8°
1.81 mm
07-28
27.9° 15.1°
Both models agree
Avg diff: 2.8°C
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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 2026-07-22T05:34 UTC.