Marion County UV ForecastUnited StatesSCMarion CountyModerate5.6MullinsModerate UV, 5.6Moderate5.6MarionModerate UV, 5.6Moderate5.6GreshamModerate UV, 5.6Brittons NeckCentenaryGreshamMarionMarion County AirportMullinsNicholsPeedeeRainsSellersTenmile Bay