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)
25
Good
Weymouth Town, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.58 μg/m³
0
55
155
255
425
605+
26.64 ppb
0
55
71
86
201
201+
0.80 ppb
0
36
76
186
605
1005+
1.50 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Weymouth Town, Massachusetts
Weymouth Town, Massachusetts
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AQI 24
Good
2.07μg/m³
PM2.5
8.81μg/m³
PM10
25.84ppb
O3
0.83ppb
SO2
2.49ppb
NO2
0.28ppm
CO
AQI 24
Good
2.13μg/m³
PM2.5
9.10μg/m³
PM10
26.10ppb
O3
0.82ppb
SO2
2.20ppb
NO2
0.27ppm
CO
AQI 23
Good
2.14μg/m³
PM2.5
9.12μg/m³
PM10
25.44ppb
O3
0.86ppb
SO2
2.60ppb
NO2
0.28ppm
CO
AQI 23
Good
1.96μg/m³
PM2.5
8.24μg/m³
PM10
25.00ppb
O3
0.89ppb
SO2
2.83ppb
NO2
0.28ppm
CO
AQI 24
Good
1.62μg/m³
PM2.5
6.71μg/m³
PM10
26.31ppb
O3
0.78ppb
SO2
3.28ppb
NO2
0.27ppm
CO
AQI 24
Good
1.50μg/m³
PM2.5
6.18μg/m³
PM10
26.39ppb
O3
0.77ppb
SO2
3.54ppb
NO2
0.27ppm
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 03:00:00 on 2026-09-28.
In the last 24 hours, the best air quality in Weymouth Town, Massachusetts was observed at 09:00:00 on 2026-09-28.
As of now, the AQI in Weymouth Town, Massachusetts is 25, 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 2.218 μg/m3.
The PM10 concentration in Weymouth Town, Massachusetts is 9.577 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Weymouth Town, Massachusetts is 0.272 ppm.
Currently, Weymouth Town, Massachusetts has a sulfur dioxide (SO2) concentration of 0.796 ppb.
The current ozone (O3) level in Weymouth Town, Massachusetts at the moment is 26.641 ppm.
Nitrogen dioxide (NO2) level in Weymouth Town, Massachusetts at the moment is 1.499 ppb.
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