Aviation Digital Data Service (ADDS)

Output produced by METARs form (1242 UTC 20 September 2017)
found at http://aviationweather.gov/adds/metars/
 
KBOS 201120Z 2012/2118 03015G25KT 4SM -SHRA BR OVC006 
     FM201800 03019G30KT 6SM -SHRA BR OVC010 
     FM210200 01016G32KT 5SM BR OVC020 
     FM210500 01016G31KT P6SM OVC025 
     FM211400 02020G34KT P6SM BKN250