I live a little farther north up in Illinois. By all means bring your bike with you. I'm not sure what you re hearing about the weather but it is rare to have anything compleatly damagilng. I don't live in St Louis but I am framiliar with
the area. It is a great area to ride in. slightly hilly lots af curvy roads. Winerys to visit. Home of the St Louis Cardinals, On the down side it does get hot and humid in July and August, but a good ride in the cool night air will help with that. If you enjoy your bike you would not be happy with out it.