idle question

[june3o]

it's kinda weird but i'm just a tad bit concerned.. it's funny cuz It didn't have this problem during winter but when it started getting hotter, it idles up high somewhere in the 800-1000.. I'm pretty sure temperature related issue but I'm not pretty sure. I just need some answers that can help me. thanks!

[Threehz]

I wanna say that is natural especially in hotter weather but don't quote me on it.