100F+ temps okay for standard Polaris oil?

I just purchased a new 2015 Sportsman 570. I assume the dealer put in the standard Polaris oil which shows to be good up to 100F outside temps.

About to go out on my first real ride with it, and as usual this time a year it will probably get above 100 here in the south. If not it will be that temp before my first break-in oil change.

Should I be concerned? I really hate to do an oil change on a machine with 2 miles on it. Also I assume I need the Polaris Extreme oil for future oil changes?

Thanks for any input.