The weather observed at LAS VEGAS, NV (KLAS) at 03:56 PM PDT was: The skies were partly cloudy. Temperature: 93F ( 34C) Dewpoint: 54F ( 12C) Relative Humidity: 26% Winds from the NNW(340 degs) at 7 mph. Pressure: 1011.3 millibars. Altimeter:29.95 inches of mercury. The prevailing visibility was 10 miles.