I have seen lots of weather post's. From what I've read, it will probably be in the 70's for the highs. However I understand it is cooler in the morning and evenings. I'm wondering about times. When does it start to warm up in the morning? When does it start to cool down in the evening? We will be taking a break at some point during the day and want to know when would be the best time so I know when to change. We dont bring anything to the park that doesn't fit in our pockets or my small across the chest purse, so taking clothes with us isn't happening.