Wisconsin Opening Day Fishing, Game Fish Dave 3 years ago Wisconsin opening day! Game fish is the first Saturday in May! Keep fishing for panfish until then! David P Duwe 262-728-8063 Outlook for Opening DayDateApril 28, 2019In relation toFish WisconsinWisconsin Fishing 5/5-5/13DateMay 6, 2018In relation toFish WisconsinOpening Day Fish WisconsinDateMay 8, 2018In relation toFish Wisconsin