The Raiders sent off seniors Katie Breen, Caitlin Hornyak and Avery McGlenn who played in their final game at Starr Rink.
The Big Green jumped out to a 1-0 advantage with a short-handed goal at of the first period by Meagan Walton. Cherie Piper assisted on the goal for
Colgate closed the gap to 2-1 with a goal by Maura Kehoe at of the second period. Carly McNaughton and Cheryl Setchell assisted on the goal, which is the eighth for Kehoe this season.
Weatherston then scored to make it 3-1 and added an empty-netter to set the final.
Rebecca Lahar made 26 stops in net for the Raiders, while Stephanie Cochran turned aside 19 shots for the Big Green.
The Raiders finish the regular season at 15-15-3 overall and a