Many years ago, due to circumstances beyond my control, I had to install packages in a snow storm and they all made it fine.
If delaying a day makes for better weather, keep them in your garage or basement and feed them thru the screen. If it is a longer cold spell, go ahead and install them and make sure you give them syrup inside as Bjorn has suggested. An inverted jar on the tops of the frames that allows them to cluster under it is best. Also warm syrup is taken better. If they syrup is too cold they won't take it.