Welcome to the site.
I'd definitely air up the tires (at least check them to see what they're at). They won't gain that much pressure in warm weather and tires can handle MUCH higher psi ratings than what they're recommended to run at (200 psi is a tire's standard burst pressure).
http://www.popularmechanics.com/cars...unked-10031440
I'd also highly suggest some form of instrumentation.