Aviation Digital Data Service (ADDS)

Output produced by METARs form (0128 UTC 04 September 2015)
found at http://www.aviationweather.gov/adds/metars/
 
KSFO 032336Z 0400/0506 26019G25KT P6SM FEW020 
     FM040400 27015KT P6SM FEW015 
     FM040900 25010KT P6SM FEW010 SCT015 
     FM041800 26015G20KT P6SM FEW015 
     FM042100 25023G30KT P6SM SKC