The 49ers' temporary home stadium comes with an added accessory the club does not have with Levi's Stadium.
Coach Kyle Shanahan said Friday he believes it is his decision to make whether the retractable roof at State Farm Stadium opened or closed for games.
"I think it is because they keep asking me," Shanahan answered when asked if he gets to make the decision on the roof.
It is an easy decision for Shanahan, who is looking out for the best interests of kicker Robbie Gould and quarterback Nick Mullens.
"I want it closed the rest of the year," Shanahan said. "You can have perfect elements and I'd like perfect elements. You do it to help the kicker and the quarterback."
The roof of the Arizona Cardinals' home stadium was closed Monday night for the 49ers' first "home" game in Glendale, Arizona.
The forecast for the weather outside the 49ers' game Sunday against Washington calls for 60 degrees and sunny with 7 mph wind.
Inside, it will be 68 degrees with no wind.
Shanahan will again make sure of that, though Kliff Kingsbury and the Arizona Cardinals will get to make the decision when they play host to the 49ers in Week 16.