Air Quality in Acton, United States
Windy
26.6°C · 31.5% humidity
26.6°
Feels 26.6°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Acton's air quality — share it
AQI Forecast
25
8pm
25
25
46
11pm
41
37
34
2am
32
31
30
5am
29
28
28
8am
26
25
25
11am
25
25
25
2pm
25
27
27
5pm
27
27
Air Quality Index Trend
45h · 8 stnActon's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
31.5%
Humidity
54.9 km/h
Wind W
1009.2 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
11.04 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Acton?
Temperature & Precipitation
PM2.5 Trend
45h · 8 stationsPM2.511.04 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
What is the 7-day forecast for Acton?
08-03
26.6° 17.6°
1.25 mm
08-04
37.4° 16.9°
08-05
34.1° 22.3°
0.06 mm
08-06
28.8° 15.8°
1.63 mm
08-07
31.4° 20.5°
4.63 mm
08-08
26.9° 19.1°
0.13 mm
08-09
39.6° 21.9°
0.13 mm
Both models agree
Avg diff: 3.6°C
What cities are near Acton?
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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 2026-08-08T03:00 UTC.