Help!!!

Help!!!

My zucchini is dying and I have no idea why.It started to wilt 3 days ago and I thought it was from the heat so I watered it. Today when I got home from work it was almost completely wilted and turning yellow. Up until a week ago it was perfectly healthy and producing on a regular basis. The weather around here has been very rainy and hot. Its literally been raining almost every other day and its been a good amount of rain. Is it possible that it become sick with some kind of mold? can this affect my other plants and what can I do to stop it from spreading if this is the case? I have 2 yellow squash plants that are perfectly fine. Also, if I buy a zucchini plant from Home depot that is about 6 inches tall approximately how long would it take to produce? I live in Charlotte, NC if that's of importance. Thanks in advance :)
Plant ID

Plant ID

Garden pictures and need help with rhubarb

Garden pictures and need help with rhubarb

This is the view when you first walk in

This is the view when you first walk in

more garden pictures

more garden pictures

Living room pics newly updated

Living room pics newly updated

Noob.

Noob.