Williamsport
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
 
State Air Quality Resources
Air Quality Partnership of Lehigh Valley - Berks
Air Quality Partnership of the Delaware Valley
Air Quality Partnership of the Susquehanna Valley
American Lung Association (ALA) of Pennsylvania
PA Allergy & Asthma Association
Pennsylvania DEP - BAQ - Contacts
Pennsylvania DEP - BAQ - Current Air Quality Index (AQI) by Area
Pennsylvania DEP - Bureau of Air Quality (BAQ)
Pennsylvania DEP – Air Quality Forecast Home Page
Pennsylvania DEP – Home Page
Southwest PA Air Quality Partnership

AirNow.gov is undergoing maintenance. Updates for the forecasts and current conditions are not available between midnight and 4 am EST.

Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
36 
Good
Health Message: None
Data Not Available
AQI - Pollutant Details
Ozone
36 
Good
Data Not Available
Forecast Discussion: High pressure is bringing a nice Monday afternoon to the region. Despite the strong June sunshine, ozone levels remain in the good range. More clouds than sun Tuesday with a good chance for showers and thunderstorms will keep ozone levels down once again. Increasing amounts of sunshine for Wednesday, but clean background air from the west-northwest will prevent excessive ozone formation. A series of weather systems passing mainly to the south of us may bring more clouds than sunshine late in the week, with showers possible and ozone still in the good range.

Current Conditions
Data Not Available

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)