Butte County UV ForecastUnited StatesSDButte CountyLow2.1Belle FourcheLow UV, 2.1Low1.9Castle RockLow UV, 1.9ArpanBelle FourcheBelle Fourche Municipal AirportBelle Fourche National Wildlife RefugeBelle Fourche ReservoirCastle RockFruitdaleGuidinger ReservoirHerman ParkHighland ParkHooverNewellNewell LakeNislandRocky Point Recreation AreaVale