Air Quality in Boston, United States
Partly Cloudy
14.4°C · 63.7% humidity
14.4°
Feels 14.4°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Boston's air quality — share it
AQI Forecast
Calibrated
5
2pm
5
5
17
5pm
14
11
9
8pm
10
9
9
11pm
8
8
8
2am
7
5
5
5am
5
5
7
8am
7
7
7
11am
7
7
Station readings
5
5
2
2
CAMS model
adj -20
25
25
25
25
25
25
25
27
27
27
27
27
27
27
25
25
25
25
27
27
27
27
27
27
Air Quality Index Trend
41h · 1 stnBoston's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
63.7%
Humidity
30.3 km/h
Wind S
1027.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.1 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Boston?
Temperature & Precipitation
PM2.5 Trend
41h · 1 stationPM2.54.1 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
4.1
Median
2.81
Average
0.73
Low
4.1
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +1.8
What is the 7-day forecast for Boston?
09-22
24.8° 9.5°
09-23
19.3° 14.4°
09-24
15.2° 9.7°
09-25
19.5° 14.0°
09-26
18.8° 10.1°
09-27
26.2° 8.8°
0.19 mm
09-28
27.9° 11.7°
Both models agree
Avg diff: 3.7°C
Where are air quality stations near Boston?
What cities are near Boston?
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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 2026-09-22T21:52 UTC.