The temperature was in the 70s on Friday before the series opener with the Braves, and it's expected to reach the 80s on Sunday for the finale of the three-game set.
"I'll take it any day," Brewers manager Ron Roenicke said of the warmth.
The Atlanta weather is in contrast to the Cubs series, when two of the games were played with the temperature in the 40s.
"In Chicago, that was cold," Roenicke said. "One night was really bad."
The temperature was 40 degrees at game time on Tuesday and dropped from there. With the wind, it felt even worse.