Rain began falling at SunTrust Park late Sunday morning and was forecast to continue through the afternoon and night.
The game will be made up as part of a split doubleheader on May 28.
Braves manager Brian Snitker said the rainout will give his players a well-timed rest — even though he was hoping his team could build on momentum gained from Saturday night’s 4-3 last at-bat win.
“We’ve still got seven days before we have an off day, so it will be good to give everybody an extra day,” Snitker said.
Right-hander Mike Foltynewicz, who was scheduled to start for the Braves, will have his start pushed back to Monday night, when Atlanta opens a four-game series at Cincinnati. Snitker said no starter will be skipped; others in the rotation also will be pushed back one day.
The Mets also will push back their scheduled starting pitcher, Zack Wheeler, to Tuesday night, when New York opens a three-game series at St. Louis. The Mets are off on Monday.
Right-hander Noah Syndergaard will start against the Cardinals on Wednesday, filling the rotation spot originally planned for Matt Harvey. The Mets announced on Saturday that Harvey, struggling with a 6.00 ERA, is moving to the bullpen.
The unscheduled day off was well-timed for at least two Mets players.
Manager Mickey Callaway already planned to rest slumping right fielder Jay Bruce and third baseman Todd Frazier on Sunday.
Callaway said Frazier “got spiked pretty good” at third base on Saturday night. Callaway said Frazier’s toe was “throbbing pretty good.”
Bruce is hitting only .194 with one homer.
“We decided before the game (Saturday) we were going to give him a day off so he could have two in a row,” Callaway said of Bruce. “Just let him relax a little bit for a couple days.”
Bruce was 2 for 12 in the first three games of the series.
“He’s in a spot right now where he’s trying to figure things out and that’s never a comfortable spot to be in,” Callaway said. “… Jay Bruce is a really good player. He’ll bounce back. He’s been through this before as everybody has. He’ll end up turning it around.”
The Braves won two of three against the Mets for their first home series win in the NL East rivalry since June 19-21, 2015, when they won three straight.