Air Quality in Charlestown, United States
Windy
27.1°C · 30.1% humidity
27.1°
Feels 27.1°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Charlestown's air quality — share it
AQI Forecast
Calibrated
55
12am
55
55
42
3am
46
48
50
6am
59
60
53
9am
54
54
54
12pm
55
55
55
3pm
55
55
55
6pm
62
62
62
9pm
62
62
Station readings
6h ago
AQI 51
PM2.5 12.3 µg/m³ · 6h ago
CAMS model
adj +28
27
27
27
27
27
27
27
34
34
27
27
27
27
27
27
27
27
27
27
34
34
34
34
34
Air Quality Index Trend
6h · 1 stnCharlestown's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
30.1%
Humidity
53.2 km/h
Wind W
1009.1 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.0 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Charlestown?
Temperature & Precipitation
PM2.5 Trend
6h · 1 stationPM2.510.0 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
What is the 7-day forecast for Charlestown?
08-03
27.1° 17.5°
0.44 mm
08-04
37.6° 18.1°
08-05
33.7° 22.7°
08-06
28.8° 17.0°
1.44 mm
08-07
32.1° 21.0°
4.63 mm
08-08
28.5° 19.4°
0.06 mm
08-09
40.6° 23.1°
Both models agree
Avg diff: 4.2°C
Where are air quality stations near Charlestown?
36
Boston
38
Boston
38
Boston
32
Boston
51
Magazine Beach Park
43
Nubian Square - DEP Station
38
Boston Roxbury
38
Boston Roxbury
40
Lynn Water Treatment Plant
What cities are near Charlestown?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T07:25 UTC.