According to 9 News, there will be no postseason baseball in Colorado today. Game 3 will instead be played tomorrow night at 8:07 MDT with Game 4 happening at a time TBA on Monday.
Tickets to tonight's game will be accepted tomorrow and game 4 tickets will be good on Monday. If it is necessary, game 5 will still be played in Philadelphia on Tuesday.
Looking outside my window and seeing a blanket of snow covering the ground, I'm not surprised in the least.