The weather observed at PHILADELPHIA, PA (KPHL) at 03:54 PM EST was: The skies were partly cloudy. Temperature: 32F ( 0C) Dewpoint: 0F (-18C) Relative Humidity: 25% Winds from the NNW(340 degs) at 15 mph. Pressure: 1039.0 millibars. Altimeter:30.69 inches of mercury. The prevailing visibility was 10 miles.