RE: Well between Tuesday and yesterday we have gotten two inches of rain but I'll still water them.
Don't ... two inches of rain is
plenty!
Squash bugs and stink bugs are closely related and both are bad garden pests. I think your guy is the squash bug. As the name suggests, they prefer squash family plants, but if you don't have them in your garden, they will travel to other things.
They can cause damage from sucking the juices from the plant:
under heavy attack, the plant will wilt:
They are a difficult pest to get rid of. Put a board or shingle flat on the ground. Come back in the morning and lift it and you may find them congregating under it. Diatomaceous earth may be effective against them (but they are pretty hard-shelled, so maybe not). Thorough watering brings the squash bugs out in open to the top of the plants, where they are easier to capture. If you have a little hand vacuum cleaner, you can try vacuuming them off your plants. Check the undersides of your leaves frequently for their eggs, laid in neat rows:
again all of this would be much more common on squash family plants.