Sioux County UV ForecastUnited StatesNDSioux CountyModerate4.4Fort YatesModerate UV, 4.4Moderate5.9Cannon BallModerate UV, 5.9High6.3SelfridgeHigh UV, 6.3Cannon BallCedar River National GrasslandFort YatesFort Yates Recreation AreaFroelich Dam State Game Management AreaLake OahePorcupineSelfridgeSlaughterhouse BaySolenStanding Rock Airport