County, MO Events Event Categories Educational Environmental Fairs Festivals Memorials County Event OutlookMay 15, 2025 Missouri LEAF - LamarMay 24, 2025 Truman Heritage Days - LamarMay 31, 2025 Heritage Days - LamarJuly 23, 2025 Lamar Farm and Industrial Exposition - LamarAugust 9, 2025 Wildflower Walk - Liberal View our full calendar of events