If skunks were living in your attic the smell would be strong and constant not intermittant.
Is it possible for skunks to get into attic.
You surely don t want to have this right on you and so you are going to be a lot less aggressive in trying to get the animal out of your home.
Or it s possible the skunk sprayed one of your pets.
They get into trashcans live off loose dog food and can build homes in areas where they have easy access to these things.
You don t want this critter around it all so something has to be done to get rid of it.
Skunks aren t good climbers so they likely didn t get into your attic through your roof and they don t tend to seek out homes either.
However you simply can t let the skunk a stay in your attic or basement.
Wildlife like this has learned to live with and actually live off the presence of humans.
If it s coming from inside your home you likely had a skunk come in through an open door or a doggy door.