The weather observed at PHILADELPHIA, PA (KPHL) at 05:54 AM EDT was: The skies were mostly cloudy. Temperature: 69F ( 21C) Dewpoint: 65F ( 18C) Relative Humidity: 87% Winds from the CLM(CLM degs) at 0 mph. Pressure: 1021.4 millibars. Altimeter:30.17 inches of mercury. The prevailing visibility was 7 miles.