The weather observed at PHOENIX/SKY HRBR, AZ (KPHX) at 12:51 AM PST was: The skies were clear. Temperature: 93F ( 34C) Dewpoint: 60F ( 16C) Relative Humidity: 33% Winds from the NW (320 degs) at 9 mph. Pressure: 1007.4 millibars. Altimeter:29.82 inches of mercury. The prevailing visibility was 10 miles.