Air Quality in Billerica, United States

Windy
20.7°C · 72.5% humidity
20.7°
Feels 20.7°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
62 1pm
62
62
39 4pm
46
50
54 7pm
56
58
52 10pm
53
51
52 1am
51
51
52 4am
52
52
52 7am
52
52
52 10am
52
52
Station readings
62
65
65
71
CAMS model adj +28
34
34
34
34
34
34
34
34
34
27
27
25
25
24
24
24
24
24
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

48h · 1 stn

Billerica's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

72.5%
Humidity
64.5 km/h
Wind NE
1014.8 hPa
Pressure
7.9
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
39
9.36 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.59.36 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX7.9
Very High
AD 300×250
9.36
Median
9.36
Average
9.36
Low
9.36
High
PM2.5 µg/m³ · Model: 13.7 · Bias: +4.3
07-21
26.5° 19.6°
3.31 mm
07-22
22.5° 14.3°
12.25 mm
07-23
26.7° 16.6°
1.88 mm
07-24
25.9° 14.7°
1.63 mm
07-25
34.8° 19.7°
3.44 mm
07-26
22.9° 16.2°
2.94 mm
07-27
29.2° 15.2°
2.31 mm
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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 2026-07-21T20:45 UTC.