That's why it's so IMPORTANT to know calculus! :)
Cool. we will need a nice rate of decay equation as a function of temperature, then we will a temperature equation as a function of time, will need to be a trig function as we will want to repeat every 24 hrs. Will have to assume no cold fronts or heat waves, but we can work on that later. looks like a double or triple integral to me.
-PJ