The weather observed at SAN FRANCISCO, CA (KSFO) at 02:56 PM PDT was: The skies were mostly clear. Temperature: 72F ( 22C) Dewpoint: 54F ( 12C) Relative Humidity: 53% Winds from the SW (220 degs) at 9 mph. Pressure: 1011.7 millibars. Altimeter:29.88 inches of mercury. The prevailing visibility was 10 miles.