Weise, a former Canadien, has played 42 matches in 201819 together with five goals and six assists. The 30-year-old had 59 points in 152 matches with Montreal from 2013-2016.
Weise has 54 goals and 66 assists in career NHL regular season games since his debut at 2010-11. He also has played for the Ny Rangers, Vancouver and Chicago.
A 27-year-old Swede, folin, was doing 26 games with Philadelphia this season, recording two assists.
Folin has seven goals, 31 assists and 96 penalty minutes in 209 career NHL regular season matches since his debut in 2013-14 with Minnesota, Los Angeles and Philadelphia.
Schlemko, acquired in a transaction with Vegas had two assists in 18 games with the Canadiens this season.
Froese signed as a free agent with Montreal. He had been leading the American Hockey League’s Laval Rocket together with 14 targets.