First, realize that heat and cool can come from various sources. In addition to the general temperature of a room, watch for specific sources such as heat vents, radiators, cold-air returns, windows, doors, fireplaces and ovens. When the temperatures fall outside that range, it can damage the plant. Many plants will tolerate a higher temperature when the humidity is higher. And, of course, keeping your plants strong and healthy will make them more adaptable.
Most indoor plants can tolerate lower average temperatures in the winter.
During the winter season when we have much shorter days, most plants are going through a rest period. New growth tends to need warmer temperatures. A few plants even require a cooler winter and that can be difficult since most homes are heated evenly for the season. Sudden changes are much harder on plants than gradual changes. When moving plants during the winter, it is essential that they be properly wrapped and protected.