The weather observed at SAN FRANCISCO, CA (KSFO) at 03:56 PM PST was: The skies were mostly clear. Temperature: 71F ( 22C) Dewpoint: 42F ( 6C) Relative Humidity: 35% Winds from the WNW(290 degs) at 10 mph. Pressure: 1014.2 millibars. Altimeter:29.95 inches of mercury. The prevailing visibility was 10 miles. The maximum temperature in the past 6 hours was 74F. The minimum temperature in the past 6 hours was 65F.