Yeah for a while. Especially indoors. If it gets too cold they instinctively slow their systems down and sleep similar to brumation. It's best that they don't have this happen but they're pretty tough and can handle cold temps for a while. Especially if they are indoor daytime temps which don't usually get low enough to be harmful.
I live in a storm prone area so I have my lights hooked up to a computer server battery backup which provides a few hours of light runtime. Good for storms and short outages but it's also good to have an emergency kit set up with fresh water, long runtime reptile shipping heat packs, fleece blankets, activated charcoal, canned food such as repashy grub pie, etc.