Aviation Digital Data Service (ADDS)

Output produced by METARs form (1350 UTC 03 May 2015)
found at http://aviationweather.gov/adds/metars/
 
KIAD 031122Z 0312/0418 VRB03KT P6SM FEW100 
     FM031500 29006KT P6SM SCT050 
     FM032100 26005KT P6SM SCT050 
     FM040000 VRB03KT P6SM FEW250 
     FM041500 22010KT P6SM SCT050