Air Quality in Williamstown, United States
Windy
8.3°C · 68.3% humidity
8.3°
Feels 3.6°
29
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
Calibrated
37
8pm
36
27
35
11pm
35
35
35
2am
35
48
48
5am
48
48
48
8am
48
73
73
11am
73
73
73
2pm
48
35
35
5pm
35
35
Station readings
37
36
27
CAMS model
adj -2
37
37
37
37
37
37
37
37
50
50
50
50
50
50
75
75
75
75
75
50
37
37
37
37
PM2.5 Trend (24h)
26h · 1 station68.3%
Humidity
43.7 km/h
Wind SE
1032.6 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for Williamstown?
Temperature & Precipitation
PM2.56.9 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
What is the 7-day forecast for Williamstown?
04-09
14.1° 1.6°
04-10
19.8° 5.6°
04-11
22.8° 9.8°
04-12
21.8° 12.3°
04-13
25.5° 10.3°
04-14
27.8° 17.7°
04-15
25.5° 20.2°
Both models agree
Avg diff: 3.0°C
Where are air quality stations near Williamstown?
33
3184 League Island Blvd
35
Pattison & Galloway
31
AMS SWA Site
32
2600 Penrose Ave
38
3001 S 84th St
37
7331 Lindbergh Blvd
What cities are near Williamstown?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T23:08 UTC.