The AT&T Center says the problem is fixed.
Spokesman Carlos Manzanillo says the electrical failure that caused the air conditioning to go out during last night's Spurs Heat NBA Finals game has been repaired.
"The AC system has been tested, is fully operational, and will continue to be monitored," Manzanillo told 1200 WOAI news.
"The upcoming events at the AT&T Center, including the Romeo Santos concert tonight, the Stars game on Saturday night, and Game 2 of the NBA Finals on Sunday, will go on as scheduled."
He said the AT&T Center 'apologizes for the conditions in the arena during last night's game.'
The temperature in the AT&T center started soaring last night during the first quarters, and by half time the temperature had reached 90 degrees.
The heat caused Miami superstar LeBron James to leave the game in the fourth quarter due to a leg cramp.
The Spurs won the game.