I have the same problem, it is so horribly hot, that we end up going nowhere these days.
For some reason T. hasn't got it into it's head that it needs some indoor play places for kids, I live in a crummy area for indoor stuff, unless you want to go to pump it up, or bowling - not great for toddlers, and expensive there is nothing. All the pools are outdoors with no shade.
We are lucky enough to have an above ground pool, so we go swimming for an hour or so everyday, but the rest of the day we are indoors, we play the computer, watch tv, read, do a bit of painting. My Mall is crappy and boring, my Mcdonalds is filled to the Gills with germy kids - I have to keep my 8 yo healthy as he has a compromised immune system. My 3 year old runs in the house, back and forth, she does it of her own accord!
I don't have any great ideas, but I sympathize!
And after dark in TX is no fun at all, you can't see the fire ant beds or snakes, and can any one say MOSQUITO? even with spray on they bite terribly around here.
I have to really dig deep and remind myself why I live here sometimes. digging.....Nope can't find the reason.