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)
40 
Good
Health Message: None
Air Quality Index (AQI)
37 
Good
Health Message: None
AQI - Pollutant Details
Ozone
40 
Good
Ozone
37 
Good
Forecast Discussion: A cold front is moving through central parts of the state this Tuesday afternoon. A thunderstorm will pop in a few areas this afternoon. High levels of mixing are keeping ozone levels down in the good range. High pressure over Pennsylvania should keep the weather tranquil through the midweek period with ozone formation kept down due to a lack of precursors. A small area of low pressure then tracks south of us Thursday night into Friday, and could bring a couple of showers. Higher cloud cover will mean low ozone concentrations Friday. A new area of high pressure then builds in over the weekend, but with a dry north to northwest flow, ozone development will once again be restricted.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 17:00 EDT
32
Good
Health Message: None
AQI - Pollutant Details
Ozone 32 Good

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