The highest AQ index in Pennsylvania (as of 7:00 EDT) is currently the Susquehanna Valley area. Particle Pollution (PM2.5) is measuring at 58 (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 Mon Valley Area area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
***A FLOOD WATCH IS IN EFFECT UNTIL 8 AM SATURDAY***Current Conditions at 4 PM EDT this Friday afternoon: Showers and a thunderstorm are moving through the area on a slow moving cold front. Showers will linger into Saturday before high pressure finally dries things out Sunday into Labor Day. Here are the forecast details: *** Saturday’s forecast: Mostly cloudy Saturday with a couple of showers. Winds will shift into the north during the afternoon as a cold front slips to the south. Highs will reach around 80 with fine particle (PM2.5) remaining in the good range. *** Sunday’s forecast: Mostly sunny Sunday with a nice afternoon. Comfortable with highs in the upper 70s. PM2.5 concentrations will remain below the moderate range. *** Labor Day forecast: Lighter winds and less mixing will cause PM2.5 to rise again, perhaps to the moderate threshold. Highs in the lower 80s. *** Tuesday’s forecast: A little warmer Tuesday with increased weekday emissions along with a mostly sunny sky contribute to moderate PM2.5 concentrations. *** Extended forecast: Partly sunny and breezy Wednesday with a warm afternoon and moderate air quality continuing. A cold front approaching will bring showers and a thunderstorm late Wednesday and Wednesday night. Turning cooler late in the week with northwest flow and good air quality returning.---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 6 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.