Johnson County UV ForecastUnited StatesARJohnson CountyHigh6.8ClarksvilleHigh UV, 6.8High6.8Coal HillHigh UV, 6.8High6.8KnoxvilleHigh UV, 6.8High6.8OzoneHigh UV, 6.8BatsonClarksvilleClarksville Municipal AirportCoal HillHagarvilleHartmanHuntKnoxvilleLake DardanelleLake LudwigLamarOarkOzone