Aviation Digital Data Service (ADDS)

Output produced by METARs form (1801 UTC 26 July 2016)
found at http://aviationweather.gov/adds/metars/
 
KORD 261720Z 2618/2724 10006KT P6SM SCT050 
     TEMPO 2618/2621 BKN050 
     FM270100 VRB03KT P6SM SKC 
     FM271900 10006KT P6SM FEW050 SCT200