Checking out of our hotel in Paris and have a morning tour at the Louvre Museum. Are their lockers at the museum or are their lockers at the Paris Nord station that we could store our luggage for the day.
The Louvre has a check room with lockers but I don't believe they will hold a suitcase and their policy is to not store luggage like that. Gare du Nord has a left luggage facility with screening of bags and large lockers that will hold suitcase -- one might hold both.
Your hotel will gladly hold your luggage, if you have time to go back and retrieve it, after the tour.
Why don't you leave it with your hotel after checkout? Virtually all hotels will do this, usually completely free and secure.
Yes we thought about leaving it at our hotel but it's in the opposite direction of the Train stn. We were thinking of storing our luggage/ backpacks at the train stn and then head to louvre museum.