Weber State (13-15, 8-9) is battling for one of three remaining tournament berths and pulled into a three-way tie for sixth place with Idaho and Portland State.
The Wildcats led by eight at intermission and quickly pushed it to a dozen in the first minute of the second half.
Idaho (13-15, 8-9) shot 50 percent from the field (22 of 44), including 3 of 12 from beyond the arc, but the Wildcats matched the Vandals field goal total on 22-of-51 shooting, including 6 of 21 from distance. A major difference in the game was at the free throw line, where Idaho was 16 of 24 and Weber State was 24 of 30.
Mike Scott's 16 points paced Idaho.