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)
38
Good
Weymouth Town, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.30 μg/m³
0
55
155
255
425
605+
36.92 ppb
0
55
71
86
201
201+
0.78 ppb
0
36
76
186
605
1005+
3.18 ppb
0
54
101
361
1250
2050+
0.16 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 44
Good
7.60μg/m³
PM2.5
32.36μg/m³
PM10
34.74ppb
O3
0.88ppb
SO2
2.99ppb
NO2
0.15ppm
CO
AQI 44
Good
8.17μg/m³
PM2.5
35.40μg/m³
PM10
35.89ppb
O3
0.83ppb
SO2
2.75ppb
NO2
0.15ppm
CO
AQI 44
Good
7.85μg/m³
PM2.5
33.55μg/m³
PM10
34.69ppb
O3
0.87ppb
SO2
2.99ppb
NO2
0.15ppm
CO
AQI 44
Good
7.80μg/m³
PM2.5
32.22μg/m³
PM10
34.22ppb
O3
0.92ppb
SO2
3.05ppb
NO2
0.16ppm
CO
AQI 52
Moderate
10.37μg/m³
PM2.5
45.32μg/m³
PM10
36.37ppb
O3
0.79ppb
SO2
3.10ppb
NO2
0.16ppm
CO
AQI 54
Moderate
10.93μg/m³
PM2.5
48.02μg/m³
PM10
36.65ppb
O3
0.78ppb
SO2
3.28ppb
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 03:00:00 on 2026-06-29.
In the last 24 hours, the best air quality in Weymouth Town, Massachusetts was observed at 10:00:00 on 2026-06-29.
As of now, the AQI in Weymouth Town, Massachusetts is 38, indicating Good conditions.
Weymouth Town, Massachusetts air has the highest levels of PM2.5.
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 7.255 μg/m3.
The PM10 concentration in Weymouth Town, Massachusetts is 31.3 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Weymouth Town, Massachusetts is 0.161 ppm.
Currently, Weymouth Town, Massachusetts has a sulfur dioxide (SO2) concentration of 0.778 ppb.
The current ozone (O3) level in Weymouth Town, Massachusetts at the moment is 36.922 ppm.
Nitrogen dioxide (NO2) level in Weymouth Town, Massachusetts at the moment is 3.184 ppb.
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