Aviation Digital Data Service (ADDS)

Output produced by METARs form (2321 UTC 24 May 2018)
found at http://aviationweather.gov/adds/metars/
 
KIAD 242100Z 2421/2524 VRB03KT P6SM SKC 
     FM250000 VRB03KT P6SM SKC 
     FM251300 20004KT P6SM FEW250 
     FM251600 21008KT P6SM FEW050