The highest AQ index in Pennsylvania (as of 1:00 EST) is currently the Scranton and Wilkes-Barre area. Particle Pollution (PM2.5) is measuring at 60 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Over the next few days, the highest Particle Pollution (PM2.5) will be in the Philadelphia area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.
Current Conditions: At 2 p.m. EST this Wednesday afternoon, skies were partly sunny with temperatures still on the mild side. Light mixing and higher relative humidity have kept fine particle (PM2.5) readings in the low moderate range. A strong cold front is currently moving through the Ohio valley and will cross our area tonight with much needed rainfall. Colder air will sweep in behind the front and remain with us into the weekend. Here are the forecast details: *** Thursday’s forecast: Some sunshine during the morning, then clouds come in during the afternoon with perhaps a shower of rain. Temperatures will struggle to get past the 50-degree mark. Increasing low level flow will mean PM2.5 concentrations remain in the good range. *** Extended forecast: Low pressure will swing southward into Pennsylvania Friday. As a result, the sky will be overcast with frequent cold rain showers as temperatures may struggle to get much above the 40-degree mark. Clouds and perhaps some sunshine and windy Saturday, then high pressure builds in Sunday with increasing sunshine and a milder afternoon. The next chance for showers comes Monday night with the approach of the next frontal system. Air quality will remain in the good range Friday into the weekend. ---McAuliffe
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 24 minutes ago
Below is a list of counties in Pennsylvania. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.