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)
38 
Good
Health Message: None
Air Quality Index (AQI)
43 
Good
Health Message: None
AQI - Pollutant Details
Ozone
38 
Good
Ozone
43 
Good
Forecast Discussion: Sunshine and some middle and high clouds this Thursday afternoon. With dry air coming in from the north, ozone concentrations are on the low side. Mostly moonlit and cool tonight. For the day Friday, sunshine will mix with some cloudiness. In spite of the sun, ozone levels will be held into the good range. More clouds will be moving in Friday night into Saturday as a wave of low pressure moves across the Mid-Atlantic states. The considerable amount of cloudiness will keep ozone in check. As we move on into the early part of next week, the air will grow warmer and more humid, winds will shift into the southwest, and ozone levels could even rise into the moderate range, especially by Tuesday.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 16:00 EDT
36
Good
Health Message: None
AQI - Pollutant Details
Ozone 36 Good

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