The weather observed at NYC/LA GUARDIA, NY (KLGA) at 05:51 PM EDT was: The skies were cloudy. The weather reported was a thunderstorm and fog. Temperature: 73F ( 23C) Dewpoint: 72F ( 22C) Relative Humidity: 94% Winds from the SSE(160 degs) at 10 mph. Pressure: 998.7 millibars. Altimeter:29.49 inches of mercury. The prevailing visibility was 5 miles. There has been 0.33 inches of precipitation in the past hour.