The Wildcats (21-13) beat Montana 20-25, 25-22, 23-25, 25-22, 15-12 earlier in the day in the quarterfinals.
Weber State finished with a season-low 24 digs and recorded just 29 kills, the second-lowest of the season.
The Eagles posted 44 kills and 36 digs and outhit the Wildcats .245 to .060, which is WSU's second worst hitting percentage of the season.
Chelsea Bair posted her Big Sky-best 19th double-double of the season in the quarterfinal win, finishing with 18 kills and 15 digs.
No. 21 Utah 3, Nevada 0: Lori Baird had a team-high 11 kills to help the Utes defeat Nevada 25-16, 25-22, 25-19 in the first match of the 30th Annual Pacific Bankers Classic in Stockton, Calif.
MWC champion Utah (23-5) matched its season-long win streak with its eighth consecutive victory and has now won 16 of its last 17 matches.
Cinthia Silva registered 10 kills on 18 attempts with just a pair of attack errors for her eighth double-figure kill match of this season.
The Utes outhit the Wolf Pack .303 to .044 for the match and held a 9-7 edge in blocks.
