Mary Jo and Paul Brockel of Allegany, along with their Samoyeds, Melo and Delilah, enjoy a walk in the relatively mild weather Thursday on the Allegheny River Valley Trail section across the front of St.  Bonaventure University's campus. The high temperature Saturday will be in the low 40s with mostly sunny conditions, while there will be a slight chance of snow early Sunday morning, giving way to a chance of rain for the rest of the day.