Yes. In fact, after refrigerating overnight, this chowder becomes even more rich and flavorful because the flavors have additional time to meld and marry. If you are bringing this corn chowder to your next summer get-together, feel free to prepare it the night before. Let cool to room temperature, transfer to an airtight container (or store directly in the soup pot), and refrigerate overnight.  Then, when ready to reheat, transfer back to a large soup pot and reheat over medium-low heat until warmed through.