San Antonio ISD is moving three high school graduations indoors this week to get them out of hot temperatures. Ceremonies for Sam Houston, Brackenridge, and Highlands High School were originally set for Alamo Stadium, but will instead be at the Alamo Convocation Center. Brackenridge takes place this evening, with Sam Houston on Friday and Highlands on Saturday. All three graduations are scheduled for 8 p.m. Most of SAISD's 18 graduation ceremonies take place at the Alamo Convocation or the Freeman Coliseum.