Sioux County UV ForecastUnited StatesNDSioux CountyModerate3.5Fort YatesModerate UV, 3.5Moderate3.5Cannon BallModerate UV, 3.5Moderate3.6SelfridgeModerate UV, 3.6Cannon BallCedar River National GrasslandFort YatesFort Yates Recreation AreaFroelich Dam State Game Management AreaLake OahePorcupineSelfridgeSlaughterhouse BaySolenStanding Rock Airport