PHILADELPHIA — Philadelphia's public schools are closing early due to heat.
Officials say students will be dismissed at noon Friday. The National Weather Service predicts a high of 93 degrees in the city.
Pennsylvania environmental officials have also issued an air quality alert for the Philadelphia area, the Lehigh Valley, the Susquehanna Valley and Liberty/Clairton region.
That means air pollution concentrations may be unhealthy for children, the elderly, or people with asthma and other medical conditions.