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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
46 
Good
Health Message: None
Air Quality Index (AQI)
40 
Good
Health Message: None
AQI - Pollutant Details
Ozone
46 
Good
Ozone
40 
Good
Forecast Discussion: Hot and humid conditions continue this Thursday afternoon, with ozone levels increasing into the moderate range in some parts of the area. A thunderstorm will pop late this afternoon into this evening, with areas of fog later on tonight. More clouds than sun with a couple of showers for Friday will bring ozone concentrations down into the good range. Dry and pleasant weather should then prevail for the remainder of the holiday weekend with high pressure in control. Air quality will deteriorate slightly as we move into early next week.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 7:00 EDT
1
Good
Health Message: None
AQI - Pollutant Details
Ozone 1 Good

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