Most people recommend heating a pool from Oct-April. Knowing that you will be a couple of months past the start of that timne frame I would recommend getting the pool heated.
It can be chilly at nights, and sometimes even in the days.
Some places do require heating for the whole week you are there, some will do it by day but it can take the good part of a day to heat up if it has not been heated. If you only plan on having it heated for part of the time, plan your park days first or pool days first and then turn it on/off when you switch to save some money.
Last time we rented a pool home it was early October. We did not have the pool heated and it was quite warm in the days but the pool temp was quite a bit cooler by the time we used it each night. Daylight is less that time of year so the pool won't be heated by sun nearly as much either.