Johnson County UV ForecastUnited StatesARJohnson CountyHigh6.9ClarksvilleHigh UV, 6.9High6.9Coal HillHigh UV, 6.9High6.9KnoxvilleHigh UV, 6.9High6.9OzoneHigh UV, 6.9BatsonClarksvilleClarksville Municipal AirportCoal HillHagarvilleHartmanHuntKnoxvilleLake DardanelleLake LudwigLamarOarkOzone