After World War II, a very first football club in the town of Plav is founded. Officially, foundation year of FK Jezero was in 1948. Club is named after the Lake Plav, on whose shore is built the town of Plav. First significant success, FK Jezero made in the 1968-69 season. They won the title of the Montenegrin Fourth League - North champion and gained promotion to the Montenegrin Republic League. After one season, they were relegated. During the seventies, the team from Plav played another three seasons in the Republic League. They had similar results during the next decade, which were spent in third and fourth tier of official competitions in SFR Yugoslavia. An era of successes started in the second half of the nineties. FK Jezero became one of the strongest sides in the Montenegrin Fourth League, with almost-done promotion in the 1995–96 season. But, in the match for a title, they lost a home game against neighbouring FK Komovi. The game was followed by numerous incidents in which dozens of FK Jezero players and supporters were wounded. The team from Plav gained another promotion to the Republic League after the 1997–98 season. In the higher level, they met eternal-rival side FK Gusinje, which was a permanent member of the Montenegrin Republic League. Local derbies between FK Jezero and FK Gusinje played in front of thousands of spectators. The highest one was recorded on the game in Plav during 1999, which was attended by 7,000 spectators. One of remarkable results, FK Jezero made in the 2001–02 season. After the hard struggle with FK Kom, the team from Plav finished as a runner-up of the Republic League and gained its first-ever promotion to the Yugoslav Second League. On their debut in Second League, FK Jezero hosted FK Iskra, but the game of the season was against Montenegrin notable side 2002–03 FK Budućnost, attended by 5,000 spectators in Plav. At the end, FK Jezero didn't succeed to remain a member of the Second League. Following Montenegrin independence, FK Jezero became a member of the Montenegrin Second League, where they continued with good results. Notable season was in 2007-08 when they won the title of the Second League. With that result, the team from Plav was promoted to Montenegrin First League, which remains a biggest success in the clubs' history. FK Jezero spent only one season in Prva CFL, and most of their home games were played in Berane City Stadium, because of lack of infrastructure in Stadion Pod Racinom. They played only few games at the end of season in their home town, including a game against FK Budućnost. During the season, FK Jezero made a few surprises like a win against FK Sutjeska and two draws against Budućnost. After the 33 weeks, FK Jezero finished in 10th position, but were defeated in the relegation playoffs against FK Mornar. Since then, FK Jezero plays in the Montenegrin Second League, but without significant results.
For the first time, FK Jezero played in the Montenegrin First League in the 2008–09 season. Below is a list of FK Jezero scores in the First League by every single season.
For the list of former and current players with Wikipedia article, please see :Category:FK Jezero players.
Stadium
FK Jezero plays their home games on Stadion Pod Racinom. There is one stand with overall capacity of 4,000 seats. Before the last renovation, the stadium had a much larger all-standing capacity.