Aviation Digital Data Service (ADDS)

Output produced by METARs form (0851 UTC 03 March 2015)
found at http://www.aviationweather.gov/adds/metars/
 
KDCA 030540Z 0306/0406 01015KT P6SM FEW250 
     FM031500 15007KT P6SM OVC080 
     FM031700 16007KT 6SM BR OVC040 
     TEMPO 0317/0321 5SM -SNPL OVC030 
     FM032100 17007KT 2SM BR OVC015 
     TEMPO 0321/0324 2SM -RA BR