On Saturday, Weah took Dedryck Boyata's through
ball and scored the third goal in Celtic's 3-0 win over Airdrieonians in the third round of the Scottish FA Cup.
Tim Weah stats (2018-19)
3/2 Paris SG (France)
3/2 Paris SG II (France D4)
2/2 Celtic (Scotland)
Note: League and cup play.
On Wednesday night, Weah also had a goal called off for offside and came close on another that rolled near the goal line.
The goal against St. Mirren gives Weah, who recently joined Celtic on loan from Paris St. Germain for the rest of the 2018-19 season, goals in six of the eight competitive matches he has played this season.
After his first game, Weah hailed the situation at Celtic and his new manager, Brendan Rodgers.
"I have been so impressed with everything," he said. "The gaffer has been amazing and my new teammates have been great and I feel settled here already. It makes it easy then to go out and play football."