Weren't you just spending your weekend dipping your feet in the ocean and bathing in the warm rays of the sun? The reality of the summer is that there is always an end to it. And you have the power within yourself to finish it strongly.
You don't mean to be grumpy. But darn it, you are miserable in the oppressive heat, your kids are home for 90 consecutive days, and you are don't have the stamina to pretend you are giddy that summer has arrived. Sound familiar?