The victory gave the Spiders (26-7), who also got 18 points and nine rebounds from Justin Harper, back-to-back title-game berths and another shot at their first A-10 Conference crown.
Richmond now goes on to face Dayton in Sunday's final.
The Owls (25-7) came up a bit short in their bid for a fourth straight conference championship.
Khalif Wyatt led Temple with 15 points and Lavoy Allen contributed 12 with 10 boards.
'SNL': 'Anchorman 2' cast, One Direction sing 'Afternoon Delight' [VIDEO]
Selena Gomez drops F-bomb, walks off stage during Jingle Ball performance