I noticed two of the roses in the corner of my garden have some sort of leaf damage. Its mostly the new growth so I'm guessing it's because the temperature dropped down low during the night? Anyone see this before?

Yes, I think it's from the cold too. If you make sure they're well watered then the cold temps won't bother them as much. Covering them with blankets at night is also a good idea.

Agreed, that's cold damage. The rose will probably shed it and grow new leaves again when it warms up.