Air Quality in Alton, United Kingdom
Overcast
12.4°C · 98.4% humidity
12.4°
Feels 12.4°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Alton's air quality — share it
AQI Forecast
Calibrated
15
9pm
17
17
13
12am
17
15
15
3am
15
15
15
6am
15
15
17
9am
17
17
17
12pm
17
17
15
3pm
15
15
15
6pm
15
15
Station readings
18
15
13
11
CAMS model
adj -10
25
27
27
27
27
25
25
25
25
25
25
25
27
27
27
27
27
27
25
25
25
25
25
25
Air Quality Index Trend
48h · 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.
98.4%
Humidity
32.8 km/h
Wind SSW
1008.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.2 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Alton?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.53.2 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
3.2
Median
3.2
Average
3.2
Low
3.2
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +3.3
What is the 7-day forecast for Alton?
05-29
18.7° 11.7°
1.75 mm
05-30
18.7° 12.4°
1.13 mm
05-31
17.8° 9.4°
1.63 mm
06-01
21.4° 9.0°
0.44 mm
06-02
18.1° 10.1°
1.19 mm
06-03
17.6° 11.6°
0.19 mm
06-04
25.7° 18.1°
3.38 mm
Both models agree
Avg diff: 3.0°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 2026-05-29T23:35 UTC.