Located in the northwest corner of Iowa, Estherville has a humid continental climate with four distinct seasons. Summers are warm and occasionally humid, with average temperatures in the mid-80s Fahrenheit. Winters are cold with frequent snowfall and average temperatures in the teens to low 20s Fahrenheit. The East Fork Des Moines River runs through town, offering opportunities for fishing and boating. Estherville is also home to several parks, including Thoreson Park and Fort Defiance State Park, which offer hiking, camping, and recreational opportunities. In terms of hydrology constituents, the city closely monitors its drinking water for nitrates and other contaminants, and has implemented several measures to protect and improve water quality in the area.