What is the air quality in Williamstown today?

The current Air Quality Index (AQI) in Williamstown is 27 (Good). PM2.5 concentration is 6.51 µg/m³.

What is the temperature in Williamstown right now?

The current temperature in Williamstown is 34.0°C (feels like 37.9°C). Humidity is 44.8% and wind speed is 43.6 km/h.

Is it safe to go outside in Williamstown?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 6.9 (High).

Air Quality in Williamstown, United States

Windy

34.0°C · 44.8% humidity

34.0°

Feels 37.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 11am

27 2pm

25 5pm

25 8pm

25 11pm

25 2am

25 5am

25 8am

Air Quality Index Trend

45h · 86 stn

View full history →

Williamstown's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

44.8%

Humidity

43.6 km/h

Wind W

1015.5 hPa

Pressure

6.9

UV High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.51 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Williamstown?

Temperature & Precipitation

PM2.5 Trend

45h · 86 stations

PM2.56.51 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX6.9

High

What is the 7-day forecast for Williamstown?

09-05

34.0° 17.1°

0.19 mm

09-06

25.1° 21.0°

0.13 mm

09-07

22.9° 18.4°

0.69 mm

09-08

23.9° 18.6°

0.06 mm

09-09

28.8° 16.5°

09-10

28.1° 18.5°

18.38 mm

09-11

33.4° 15.2°

Both models agree Avg diff: 4.4°C

Where are air quality stations near Williamstown?

3184 League Island Blvd

27.5 km PM2.5: 5.9 µg/m³

Pattison & Galloway

27.8 km PM2.5: 5.8 µg/m³

AMS SWA Site

29.2 km PM2.5: 6.3 µg/m³

2600 Penrose Ave

29.7 km PM2.5: 5.9 µg/m³

3001 S 84th St

31.6 km PM2.5: 6.4 µg/m³

7331 Lindbergh Blvd

32.0 km PM2.5: 6.7 µg/m³

What cities are near Williamstown?

28 Sicklerville 26 Glassboro 28 Jackson 25 Lindenwold 25 Sewell 29 Vineland 29 South Vineland 24 Cherry Hill 26 Camden 23 Mount Laurel

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T18:55 UTC.