Hi Darrin, and welcome!
There are a number of organized and semi-organized rides in the area, and you're welcome to join us at any of them. Tuesdays at Lakeshore Park (6:30) are the most consistent, although with this rain it might not happen this week. Some of us also ride Island Lake friday evenings at 6:30 - one of my favorites. Checking out the local bike shops are also a great way to find group rides and informal teams. Some are fast, some casual, some focused on fitness, some on fun. You just need to just give them a try, introduce yourself, join a ride, and find a vibe that works for you.
You don't have to be an MCMBA member to join these rides or join us on trail days, but if you decide to it's pretty easy. Just click http://site.mcmba.org/index.php/get-involved/membership
to get started.