 According to the Köppen Climate Classification system, Midway has a humid continental climate, abbreviated "Dfb" on climate maps.As of the 2010 census Midway had a population of 3,845.The ethnic and racial makeup of the population was 92.6% non-Hispanic white, 0.2% African-American, 0.5% Asian, 0.1% Pacific Islander, 0.9% reporting two or more races and 5.5% Hispanic.