Five Guys O'Fallon 11:00 AM - 10:00 PM 11:00 AM - 10:00 PM 11:00 AM - 10:00 PM 11:00 AM - 10:00 PM 11:00 AM - 10:00 PM 11:00 AM - 10:00 PM 11:00 AM - 10:00 PM1118 Merchants Way Suite 120 O'Fallon, IL 62269 USGet DirectionsVisit Store Website