Jonelle24, my opinion is that they may be nearing the end of their useful life and should be replaced something more fitting for the season.

Ron is exactly right. Snaps are considered a cool season or cool climate plant.....much like pansies.

The good news is that the rust which affects snaps (Puccinia antirrhinum) will not spread to any other plant.....except other snapdragons. Rust is very species specific and cannot jump from one kind of plant to another.

You'll need to pay careful attention to the usual housekeeping chores before planting next year. Rust spores can persist in mulch and any plant debris.