Kitten has a cloudy eye

Hello!

I have a kitten (about 8 months old, spayed). Last night I noticed that one of her eyes was looking pretty cloudy, but I was just about to fall asleep and then forgot all about it until just now.

It's Sunday afternoon so all of the vet clinics except for our emergency clinic are currently closed. Our emergency vet clinic is not great and is very stressful for animals (I love that we have an emergency vet clinic for middle-of-the-night emergencies, but I would rather not take my cats there for anything other than emergencies).

Is this the sort of thing that can wait until tomorrow, or should I take her to the emergency vet tonight?