What is the air quality in Williamstown today?

The current Air Quality Index (AQI) in Williamstown is 38 (Good). PM2.5 concentration is 9.05 µg/m³.

What is the temperature in Williamstown right now?

The current temperature in Williamstown is 26.9°C (feels like 26.9°C). Humidity is 44.6% and wind speed is 41.9 km/h.

Is it safe to go outside in Williamstown?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.2 (Moderate).

Air Quality in Williamstown, United States

Windy

26.9°C · 44.6% humidity

26.9°

Feels 26.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 7pm

38 10pm

30 1am

27 4am

26 7am

25 10am

25 1pm

25 4pm

Air Quality Index Trend

46h · 79 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.

44.6%

Humidity

41.9 km/h

Wind W

1011.2 hPa

Pressure

2.2

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.05 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Williamstown?

Temperature & Precipitation

PM2.5 Trend

46h · 79 stations

PM2.59.05 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX2.2

Moderate

What is the 7-day forecast for Williamstown?

08-03

26.9° 21.3°

15.62 mm

08-04

37.5° 22.2°

0.06 mm

08-05

34.8° 23.3°

08-06

32.1° 21.3°

08-07

31.7° 22.2°

7.06 mm

08-08

37.5° 21.3°

0.25 mm

08-09

35.3° 23.7°

Both models agree Avg diff: 3.3°C

Where are air quality stations near Williamstown?

3184 League Island Blvd

27.5 km PM2.5: 5.8 µg/m³

Pattison & Galloway

27.8 km PM2.5: 5.7 µg/m³

AMS SWA Site

29.2 km PM2.5: 5.3 µg/m³

3001 S 84th St

31.6 km PM2.5: 6.2 µg/m³

7331 Lindbergh Blvd

32.0 km PM2.5: 5.8 µg/m³

What cities are near Williamstown?

38 Sicklerville 34 Glassboro 37 Jackson 42 Lindenwold 43 Sewell 57 Vineland 57 South Vineland 40 Cherry Hill 34 Camden 42 Mount Laurel

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-08-08T02:51 UTC.