Johnson County UV ForecastUnited StatesTNJohnson CountyModerate3.6Mountain CityModerate UV, 3.6Moderate3.6Shady ValleyModerate UV, 3.6Moderate3.7TradeModerate UV, 3.7ButlerCherokee National ForestJohnson County AirportLaurel BloomeryMountain CityNevaShady ValleyTrade