Montag, 26, finished the race in 1:26:25, six seconds behind the Spanish silver medalist and 31 seconds behind the Chinese winner.
Hershko has become 3rd Israeli medal winner at the Paris 2024 Olympic Games, with all of them in judo.
Weinstein, 17, swam the first leg of the US team’s relay, helping the group take second place with a time of 7:40.86, more than two seconds behind first-place Australia.
Maia Weintraub and Jackie Dubrovich are among an outsized crop of Jewish fencers on the United States’ Paris team.
Inbar Lanir captures silver after Peter Paltchik hangs on for bronze • More success in pool, at sea
Fox captured gold Wednesday in the canoe single, finishing at 101.06 seconds, and won gold in the same event at the Tokyo Olympics.
“I am very disappointed,” Israel head coach Guy Luzon began. “I think that when the score was 0-0 we were very close to scoring a goal.