Union County Weather ForecastUnited StatesSDUnion County5278Elk PointMostly Sunny5278RichlandBreezy5376BeresfordBreezy5377AlcesterBreezy5278North Sioux CityMostly SunnyAdams Homestead and Nature PreserveAlcesterBeresfordBig SpringsBurbank LakeDakota DunesElk PointEmmetGraham FieldHorseshoe LakeJeffersonLake NixonMcCook LakeMJ Aviation Airport IINoraNorth Sioux CityRichlandUnion GroveWynstone