At Target assuming you're going to be doing a level 1 type job (cashier, inventory, etc), then your pay will start at something like 25 cents above minimum.
If you qualify for a level 2 type job (you're a currency counter or you are in charge of a specific part of the Target like the foodcourt or shoes or jewelry), then I think it's usually around 1.5 times minimum (out here in the Bay Area, but not San Francisco, when I worked at Target, starting was $7, level 2 was $11 or $12, and supervisor or "Team Leader" was $14-$16).
Mind you this was how it was in the Bay Area in 2005; your mileage may vary by location, and especially by time, since the Federal minimum wage increase did affect several states.
Since you mentioned summers, I assume you're going to be doing this as a student, and I suggest that you don't. Target is a good place to see how horrid retail is, but by no means should you work for more than one summer. Instead, find a job that you can link to something you do in school, or one that gives you some other advantage (ie, it makes use of a special skill you have, or it allows you to learn more about your chosen industry).