Union County RainfallUnited StatesSDUnion County90%Elk Point 90% Chance 90%Richland 90% Chance 95%Beresford 95% Chance 95%Alcester 95% Chance 90%North Sioux City 90% Chance Adams Homestead and Nature PreserveAlcesterBeresfordBig SpringsBurbank LakeDakota DunesElk PointEmmetGraham FieldHorseshoe LakeJeffersonLake NixonMcCook LakeMJ Aviation Airport IINoraNorth Sioux CityRichlandUnion GroveWynstone