Butte County Weather ForecastUnited StatesSDButte County5987Belle FourcheBreezy5885Castle RockSlight Chance ThunderstormsArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale