National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model-gfs-004-files/202108/20210803/catalog.html

Dataset Size Last Modified
     Folder  20210803   --
         GFS Grid 4 2021-08-03 18:00 UTC fct:006.grb2 162.2 Mbytes 2021-08-04T08:40:27.919Z
         GFS Grid 4 2021-08-03 18:00 UTC fct:003.grb2 161.7 Mbytes 2021-08-04T08:40:29.119Z
         GFS Grid 4 2021-08-03 18:00 UTC fct:000.grb2 151.2 Mbytes 2021-08-04T08:40:28.416Z
         GFS Grid 4 2021-08-03 12:00 UTC fct:006.grb2 162.1 Mbytes 2021-08-03T20:40:17.645Z
         GFS Grid 4 2021-08-03 12:00 UTC fct:003.grb2 160.7 Mbytes 2021-08-03T20:40:18.506Z
         GFS Grid 4 2021-08-03 12:00 UTC fct:000.grb2 150.4 Mbytes 2021-08-03T20:40:17.980Z
         GFS Grid 4 2021-08-03 06:00 UTC fct:006.grb2 161.1 Mbytes 2021-08-03T20:40:18.439Z
         GFS Grid 4 2021-08-03 06:00 UTC fct:003.grb2 159.7 Mbytes 2021-08-03T20:40:17.616Z
         GFS Grid 4 2021-08-03 06:00 UTC fct:000.grb2 150.1 Mbytes 2021-08-03T20:40:18.038Z
         GFS Grid 4 2021-08-03 00:00 UTC fct:006.grb2 160.8 Mbytes 2021-08-03T08:40:24.625Z
         GFS Grid 4 2021-08-03 00:00 UTC fct:003.grb2 159.9 Mbytes 2021-08-03T08:40:24.896Z
         GFS Grid 4 2021-08-03 00:00 UTC fct:000.grb2 150.0 Mbytes 2021-08-03T08:40:24.339Z

NCEI-NC THREDDS Server at NCEI see Info
Documentation