Weather isn’t just background noise in baseball—it’s an invisible player. Heat saps pitchers’ stamina, humidity messes with grip, and wind can turn home runs into lazy flyouts (or vice versa). Science shows hotter air means more homers, while cold, dense air steals them. From Wrigley’s legendary wind to MLB heatwaves, discover how the atmosphere shapes every pitch, swing, and strategy before the first pitch is even thrown.