Aviation Digital Data Service (ADDS)

Output produced by METARs form (1720 UTC 29 March 2015)
found at http://aviationweather.gov/adds/metars/
 
KBOS 291535Z 2916/3018 35005KT P6SM SKC 
     FM292000 26005KT P6SM SKC 
     FM300000 20005KT P6SM SKC 
     FM300800 20009KT P6SM SCT140 
     FM301100 20010KT P6SM BKN100