Stay updated with real-time air quality in Weymouth Town, Massachusetts featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
27
Good
Weymouth Town, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.87 μg/m³
0
55
155
255
425
605+
29.37 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
3.17 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Weymouth Town, Massachusetts
Weymouth Town, Massachusetts
Scroll To Air Quality MapLoading...
AQI 25
Good
3.20μg/m³
PM2.5
17.97μg/m³
PM10
27.25ppb
O3
0.59ppb
SO2
4.22ppb
NO2
0.15ppm
CO
AQI 27
Good
3.17μg/m³
PM2.5
17.67μg/m³
PM10
28.54ppb
O3
0.58ppb
SO2
3.37ppb
NO2
0.15ppm
CO
AQI 25
Good
3.20μg/m³
PM2.5
17.82μg/m³
PM10
27.33ppb
O3
0.57ppb
SO2
3.87ppb
NO2
0.15ppm
CO
AQI 25
Good
3.21μg/m³
PM2.5
17.42μg/m³
PM10
26.94ppb
O3
0.64ppb
SO2
3.81ppb
NO2
0.14ppm
CO
AQI 26
Good
3.24μg/m³
PM2.5
17.91μg/m³
PM10
28.08ppb
O3
0.55ppb
SO2
3.29ppb
NO2
0.15ppm
CO
AQI 26
Good
3.27μg/m³
PM2.5
17.98μg/m³
PM10
28.24ppb
O3
0.55ppb
SO2
3.08ppb
NO2
0.16ppm
CO
Air quality and pollutant data for Massachusetts, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Weymouth Town, Massachusetts is updated every hour for accuracy.
In the past 24 hours, the air quality in Weymouth Town, Massachusetts was at its worst at 07:00:00 on 2026-11-12.
In the last 24 hours, the best air quality in Weymouth Town, Massachusetts was observed at 07:00:00 on 2026-11-12.
As of now, the AQI in Weymouth Town, Massachusetts is 27, indicating Good conditions.
Weymouth Town, Massachusetts air has the highest levels of O3.
Poor air quality in Weymouth Town, Massachusetts means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Weymouth Town, Massachusetts are currently 3.127 μg/m3.
The PM10 concentration in Weymouth Town, Massachusetts is 17.867 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Weymouth Town, Massachusetts is 0.148 ppm.
Currently, Weymouth Town, Massachusetts has a sulfur dioxide (SO2) concentration of 0.609 ppb.
The current ozone (O3) level in Weymouth Town, Massachusetts at the moment is 29.37 ppm.
Nitrogen dioxide (NO2) level in Weymouth Town, Massachusetts at the moment is 3.171 ppb.
All Rights Reserved © Ambee Inc. 2025