1. North America
  2. United States
  3. Pennsylvania
  4. Dauphin County
  5. Williamstown

Williamstown

Dauphin County, Pennsylvania

2026-05-16 18:00
AQI (India)
Moderately polluted
Pollutants
O3
μg/m³
109
PM10
μg/m³
22.5
PM2.5
μg/m³
7.1
Weather
  • ℃
  • ℉
25℃
43%
10 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • O3
  • PM10
  • PM2.5

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Williamstown
AQI 114
Tower City
AQI 115
Reinerton
AQI 115
Lykens
AQI 96
Orwin
AQI 8
Gratz
AQI 96
Valley View
AQI 68
Fort Indiantown Gap
AQI 7
Berrysburg
AQI 71
Elizabethville
AQI 117
Pillow
AQI 22