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)
36
Good
Weymouth Town, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.41 μg/m³
0
55
155
255
425
605+
38.52 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
4.59 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Weymouth Town, Massachusetts
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AQI 34
Good
4.21μg/m³
PM2.5
17.88μg/m³
PM10
37.45ppb
O3
0.31ppb
SO2
6.77ppb
NO2
0.21ppm
CO
AQI 35
Good
4.11μg/m³
PM2.5
16.91μg/m³
PM10
37.90ppb
O3
0.31ppb
SO2
5.32ppb
NO2
0.21ppm
CO
AQI 35
Good
4.29μg/m³
PM2.5
17.77μg/m³
PM10
37.59ppb
O3
0.30ppb
SO2
6.36ppb
NO2
0.21ppm
CO
AQI 34
Good
4.52μg/m³
PM2.5
18.26μg/m³
PM10
36.84ppb
O3
0.33ppb
SO2
7.71ppb
NO2
0.22ppm
CO
AQI 34
Good
4.39μg/m³
PM2.5
18.16μg/m³
PM10
36.88ppb
O3
0.31ppb
SO2
6.34ppb
NO2
0.21ppm
CO
AQI 34
Good
4.48μg/m³
PM2.5
18.23μg/m³
PM10
36.83ppb
O3
0.32ppb
SO2
6.21ppb
NO2
0.21ppm
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 10:00:00 on 2026-03-13.
In the last 24 hours, the best air quality in Weymouth Town, Massachusetts was observed at 02:00:00 on 2026-03-13.
As of now, the AQI in Weymouth Town, Massachusetts is 36, 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 3.864 μg/m3.
The PM10 concentration in Weymouth Town, Massachusetts is 16.407 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Weymouth Town, Massachusetts is 0.208 ppm.
Currently, Weymouth Town, Massachusetts has a sulfur dioxide (SO2) concentration of 0.33 ppb.
The current ozone (O3) level in Weymouth Town, Massachusetts at the moment is 38.523 ppm.
Nitrogen dioxide (NO2) level in Weymouth Town, Massachusetts at the moment is 4.589 ppb.
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