Aviation Digital Data Service (ADDS)

Output produced by METARs form (0541 UTC 05 September 2015)
found at http://www.aviationweather.gov/adds/metars/
 
KORD 050303Z 0503/0606 08005KT P6SM FEW120 
     FM050700 VRB03KT 6SM BR SCT006 SCT120 
     FM051500 20007KT P6SM SCT040 BKN070 
     PROB30 0519/0522 4SM TSRA BKN040CB 
     FM060000 17004KT P6SM SCT070