Wear Now, Wear Later
Wear It Now...
It's still hot out, and it probably will be for a hot minute, so you need some short-sleeved shirts (and other appropriate stuff). These will keep you cool in more ways than one.
...And Wear It Later
Not so fast, back of the closet. Your new clothes won't need to hide away until next year. You can keep on wearing them once fall's brisker weather rolls in. Just layer them with another favorite. The cold looks good on you.