Feeding 10mth old whole milk?

Is it ok if i feed my 10mth old whole milk for just half a day? We are running out of his formula milk, itll be done on tues. His WIC appt is also on tues, so i can go grab his milk by then. Is it ok if i just feed him a bottle or 2, of whole milk? Cant really afford his milk, theyre 20 bucks over at where i live.