Air Quality in Alton, United Kingdom
Partly Cloudy
16.0°C · 52.9% humidity
16.0°
Feels 16.0°
3
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Alton's air quality — share it
AQI Forecast
Calibrated
1
3pm
1
1
3
6pm
8
28
28
9pm
28
28
28
12am
28
28
28
3am
28
28
28
6am
28
8
8
9am
8
8
8
12pm
8
8
Station readings
3
3
CAMS model
adj -26
27
27
27
27
34
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34
34
Air Quality Index Trend
46h · 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.
52.9%
Humidity
9.1 km/h
Wind SSE
1029.0 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
0.66 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Alton?
Temperature & Precipitation
PM2.5 Trend
46h · 1 stationPM2.50.66 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
Station readings (1 station within 25 km)
0.66
Median
0.66
Average
0.66
Low
0.66
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +5.6
What is the 7-day forecast for Alton?
09-05
16.9° 9.8°
09-06
18.3° 10.0°
2.12 mm
09-07
15.3° 12.4°
2.12 mm
09-08
23.4° 8.4°
0.25 mm
09-09
18.6° 8.3°
0.06 mm
09-10
20.8° 13.9°
0.13 mm
09-11
16.2° 11.4°
0.13 mm
Both models agree
Avg diff: 3.4°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 2026-09-05T17:03 UTC.