The weather observed at NYC/LA GUARDIA, NY (KLGA) at 05:51 PM EDT was: The skies were partly cloudy. Temperature: 82F ( 28C) Dewpoint: 55F ( 13C) Relative Humidity: 40% Winds from the NE (030 degs) at 5 mph. Pressure: 1016.9 millibars. Altimeter:30.03 inches of mercury. The prevailing visibility was 10 miles.