Butte County Weather ForecastUnited StatesSDButte County5691Belle FourcheIncreasing Clouds5690Castle RockIncreasing CloudsArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale