Air Quality in Billerica, United States

Rain
16.4°C · 97.6% humidity
16.4°
Feels 16.4°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
62 2pm
62
62
40 5pm
46
51
54 8pm
56
51
52 11pm
51
51
51 2am
51
51
52 5am
52
52
52 8am
52
52
52 11am
52
53
Station readings
65
65
71
CAMS model adj +28
34
34
34
34
34
34
34
34
27
27
25
25
24
24
24
24
24
24
24
24
24
24
24
25
AD 728×90

Air Quality Index Trend

47h · 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.

97.6%
Humidity
62.4 km/h
Wind NNE
1013.7 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
40
9.54 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.59.54 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
9.54
Median
9.54
Average
9.54
Low
9.54
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +1.3
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 2026-07-21T21:28 UTC.