I agree about the weather, we should be there when it's warm and be candios by the time the nor'easterns start hitting in October...I have NO intentions of being in RI when there's several feet of snow on the ground, as PT would suck outside or in the gym. I'll take summertime anytime.
Be careful what you wish for... warm weather sounds nice, until your drill instructor starts beating you in a classroom with no AC and all the windows shut. It's not fun.
As far as I'm concerned, heat is always better than the frigid cold...it's easier to cool off but near impossible to get warm, not to mention your brain tends to shut off when it's too cold out. As long as you hydrate well enough (I know, a feat in itself at OCS) the heat would be much more manageable, in my experience and honest opinion. But to each his own.
But to each his own.