The weather observed at OKLAHOMA CITY, OK (KOKC) at 04:52 AM CDT was: The skies were mostly clear. Temperature: 70F ( 21C) Dewpoint: 70F ( 21C) Relative Humidity: 100% Winds from the SE (140 degs) at 5 mph. Pressure: 1015.3 millibars. Altimeter:30.03 inches of mercury. The prevailing visibility was 10 miles.