Colby Williams, Logan McVeigh, Boston Leier and Braden Christoffer also scored for the Pats (38-24-6).
Josh Derko scored both goals for Lethbridge (12-51-5), which has dropped 10 games in a row.
Teagan Sacher turned aside 39-of-44 shots for the Hurricanes.
With four games remaining, the Pats now sit two victories shy of the magical 40-win plateau. They also have a five point lead over division rival Swift Current for first-place. Regina visits Kootenay Saturday night at 8:00 (Press Box Sports Bar Pregame Show at 7:35 pm).