Ugh I'm in the Valley too! Hate the triple digits.
Going to the park is out. There were is no shade (why who knows why they did that). The slides are burning hot by 10 am the sand is worse.
Lots of water play!! I'm going to have my charges "wash" all outside wagons, bikes, carts well everything. Plus water chalk art and making mud.
If anyone is close to Glendale the wadding pools are open you just have to check which one the life guard is at. Plus it's free