As a 32 year old man, I definitely cant call myself an expert at baby / bridal showers...but having set up tents for dozens (or maybe hundreds) of showers I can at least offer an opinion.
HOPE IS NOT A STRATEGY! "Lets hope it doesnt rain." "Lets hope isnt not too hot." These phrases are bad news if you're planning an intimate event like a shower. You cant ask people to come and literally "shower you," in gifts without at least providing a comfortable setting. We have packages in the $499 to $999 range that will give you shade, plus seating and tables for all your guests, plus long tables for food, drinks, gifts, etc.