Butte County UV ForecastUnited StatesSDButte CountyLow2.2Belle FourcheLow UV, 2.2Low1.8Castle RockLow UV, 1.8ArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale