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)
53 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
67 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
53 
Moderate
Ozone
67 
Moderate
Forecast Discussion: After a cold start, there will be plenty of sunshine Saturday with temperatures recovering to the middle to upper 60s under a strong late May sun. Things will remain too cool to move ozone out of the good range. Deteriorations in air quality are likely late in the weekend as winds go into the south and southwest, which means warmer air and higher humidity. Moderate ozone levels are likely Sunday into Monday with a fair amount of sun and limited afternoon or evening thunderstorm activity. Ozone levels will be on the decline towards the middle of next week with more clouds and increasing chances for afternoon and evening thunderstorms.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 6:00 EDT
12
Good
Health Message: None
AQI - Pollutant Details
Ozone 12 Good

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