Lehigh Valley
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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
Air Quality Action Day Program | Current Air Quality Index | Forecast
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)
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
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AQI - Pollutant Details
Particles (PM2.5)
Data Not Available
Forecast Discussion: Current Conditions: At 2 p.m. EDT this Monday afternoon, partly sunny skies were present across the region. With more clouds than sunshine, ozone levels were down in the good range. Plenty of low level moisture and light winds have contributed to moderate levels of fine particulate. Showers and a thunderstorm or two will affect our area again late this afternoon and early tonight, then convective coverage should decrease by the day Tuesday. For tonight, expect showers and a thunderstorm early, and some of these will contain hard downpours. Warm and humid overnight with areas of fog. Lows close to 70 degrees. *** Tuesday's forecast: A small area of high pressure moving in for Tuesday will bring more in the way of sunshine with less chance for afternoon thunderstorms. Ozone will be on the rise Tuesday, and could go into the moderate range. Smoke from wildfires and light winds will keep PM2.5 readings moderate. Afternoon temperatures in the upper 80s. Increasing cloudiness Tuesday night with temperatures only dropping to the lower 70s. *** Extended forecast: Our weather pattern will remain an unsettled one as we go later on in the week thanks to an oscillating frontal boundary across the Mid-Atlantic region. Mostly cloudy on Wednesday with more numerous showers and thunderstorms. Fine particulate will be washed out to some degree, but will remain in the lower moderate range. Ozone should drop back to the good zone. Clouds giving way to some sunshine Thursday with perhaps a shower. High pressure then builds in for Friday to provide mostly sunny skies. We will again watch the frontal boundary to the south for signs of northward movement and increasing chances for rain over the upcoming weekend. Ozone will remain mainly in the good range, with even fine particulate perhaps dropping to the upper good range by the end of the week, depending on how quick smoke from wildfires dissipates as well as the intensity of any rainfall.---McAuliffe

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Berks County, PA
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