Today is my grandfather's viewing and tomorrow is his funeral. I know during the funeral, the family wears mostly black, but what does the family wear during a viewing? Is it less casual or the same as a funeral?
It's usually the same, also black or grey.
Just remember that it's never compulsory for you to wear black. Some people feel that black is too depressing and that they'll rather *celebrate* the fact that the person had a good life by wearing something brighter.
usually when you go to funerals and viewings, you dont really want to be casual,
dressy is good.
and black clothes or a dress.
I am very sorry for your loss.