Aviation Digital Data Service (ADDS)

Output produced by METARs form (0031 UTC 28 March 2015)
found at http://www.aviationweather.gov/adds/metars/
 
KSFO 272320Z 2800/2906 28022G30KT P6SM SCT010 
     TEMPO 2803/2806 BKN010 
     FM280600 28020G28KT P6SM OVC008 
     FM281000 28012G18KT P6SM OVC012 
     FM281500 28010KT P6SM SCT015 
     FM281800 28020G28KT P6SM FEW030