Loan to Pistoiese

On 10 August 2018, Forte was loaned out to Serie C side Pistoiese.^[2] On 16 September he made his Serie C debut for Pistoiese as a substitute replacing Jacopo Fanucchi in the 85th minute of a 2–1 away defeat against Pro Patria.^[3] Two weeks later, on 30 September, he played his first match as a starter for Pistoiese, a 2–2 home draw against Gozzano, he was replaced Alberto Picchi after 64 minutes.^[4] On 9 December he played his first entire match for Pistoiese and he scored his first professional goal in the 7th minute of a 2–1 away defeat against Carrarese.^[5] On 23 December he scored his second goal in the 70th minute of a 2–0 home win over Arzachena.^[6] On 30 March 2019, Forte scored his third goal, as a substitute, in the 79th minute of a 4–0 away win over Juventus U23.^[7] Forte ended his loan to Pistoiese with 33 appearances and 3 goals.^[8]

Loan to Piacenza and Lecco

On 23 August 2019, Forte was sent out on loan for a second consecutive season in Serie C, this time joining Piacenza on a season-long loan deal.^[9][10] Two days later, on 25 August, he made his debut for the club in Serie C as a 86th-minute substitute replacing Luca Cattaneo in a 0–0 away draw against Arzignano Valchiampo.^[11] However his loan was terminated during the 2019–20 season winter break and he returned to Milan leaving Piacenza with only 4 appearances, all as a substitute and in Serie C, remaining an unused substitute for 15 other matches.^[8]

On 16 January 2020 he was loaned to Serie C club Lecco on a 6-month loan deal until the end of the season.^[12] Three days later, on 19 January, he made his debut for the club as a substitute replacing Simone D'Anna in the 71st minute of a 3–2 home win over Novara, and three days later he ade his second appearances for the club, again as a 74th-minute substitute in a 2–2 home draw against Arezzo.^[13][14] However Forte ended his 6-month loan to Lecco with only these 2 appearances, he also remained an unused substitute in 5 other matches.^[8]