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
Current Air Quality Index | Forecast | Ozone Action Program
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: None
Data Not Available
AQI - Pollutant Details
Particles (PM2.5)
Data Not Available
Forecast Discussion: Current Conditions: As of 2 PM on Thursday, mostly sunny skies prevail over the region as area of high pressure continues to move in from the west. With the center of the high still off to our west, we are still seeing winds reside out of the north. But the winds are light, resulting in temperatures extending through the mid 50s. Even with warming temperatures and light winds, air quality levels remain low thanks to the dry air mass over the region. Warming temperatures on Friday will lead to a slight uptick in overall PM 2.5 levels across the region. *** Friday's Forecast: So for Friday, expect mostly cloudy skies to persist over the region as a cold front pushes in from the west. This frontal system is likely to drive rain into the region during the second half of the day. As it approaches, winds over the region will steer more out of the south, allowing warmer, more humid air to creep in. Even as temperatures reach into the 60s, PM 2.5 levels are likely to hover near the good / moderate threshold because of the rain that will enhance mixing within the boundary layer during the afternoon. *** Extended Outlook: Over the coming days, expect to see temperatures to remain at or slightly above normal levels as the overall weather pattern remains active. Here is how things are shaping up... Over the weekend, expect to cooler air build in as the storm system, which pushed through on Friday, draws in a more Canadian-like air mass. Temperatures will be quick to rebound next week as a storm system begins to take shape over the Midwest / Ohio Valley region. Like many systems this past winter, this system looks to be a multi-low pressure type of system. The first low will likely impact us on Monday into Tuesday, driving rain into the region before passing off to our north. The second low is likely to impact us on Wednesday, driving even more rain over western PA. All in all, the continual soaking rains from late Monday through the middle of the week are likely to keep air quality levels within the good category. Rains could potentially linger through the remainder of the week. By the start of the weekend, all of the rain should cease as our two-pronged storm system finally pushes away from our area. Rebounding temperatures as we flow into the following week could allow air quality levels to rise toward the good / moderate threshold again. --Nolan

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