CHESTER COUNTY, PA — An air quality alert has been issued Friday for Chester County and the rest of the greater Philadelphia metropolitan area, the National Weather Service announced.

PHILADELPHIA (WPVI) -- Dry, cool weekend after a soaking rain Friday. Much milder air returns next week. TONIGHT: Rain will arrive before dawn and it may begin as a period of freezing rain in the ...

The first of two major pushes of Arctic air ... Philadelphia, many libraries and recreation centers serve as warming centers. See a list and map of the locations online. Monday: NEXT Weather Alert ...

The advisory was extended through 7 p.m. Wednesday by the South Coast Air Quality Management District. It includes most of Los Angeles, Orange and Riverside counties in the South Coast Air Basin ...

so those are not safe to use during times of poor air quality. Other recommendations for keeping your home's air clean include avoid using fireplaces, candles, incense, grilling and gasoline ...