Forgot to say I'm in Western Pennsylvania. I took this at a neighbors who wanted to kill it.

One of the Golden Orb Weavers. One of the good ladies. They eat a ton of bad bugs. See the "ladder" down the center of the web? That is their trademark. I said lady, because the males are quite a bit smaller. They will make an egg sack before long. It looks like a brown round small ball.

Perhaps the common Argiope aurantia.

Logician is very likely correct, but it would be nice if we could see the top side of this gorgeous spider rather than the bottom.

It's a beneficial insect trapper, building new webs every morning after a night of rest. They are not aggressive, and won't try to bite unless you're a flying insect....or a stupid human. Don't let your neighbor harm this spider.