Aviation Digital Data Service (ADDS)

Output produced by METARs form (1835 UTC 27 April 2015)
found at http://aviationweather.gov/adds/metars/
 
KORD 271733Z 2718/2824 03015G21KT P6SM SCT040 
     FM272200 03013KT P6SM SCT035 
     FM280200 02006KT P6SM FEW250 
     FM281500 03008KT P6SM SCT030 
     FM281800 05011KT P6SM SCT030