The rain cleared after nearly three hours of waiting, and the Cardinals completed a four-game sweep. Against the rudderless Reds, the Cardinals found their footing and their first winning streak of the season, but they couldn’t outrun the weather forever. Temperatures around freezing, snow, and forecasts for biting wind chills led the Cubs and Major League Baseball to postpone Monday night’s scheduled game at Wrigley Field. The Cubs cited “inclement weather” and “wind chills in the 20s” as their reasoning for pushing the game back until July 21, in a day-night doubleheader. The teams are set to resume play Tuesday night, with a series finale set for Wednesday.