Mercer County UV ForecastUnited StatesOHMercer CountyLow2.4CelinaLow UV, 2.4Low2.7Fort RecoveryLow UV, 2.7Low2.4RockfordLow UV, 2.4Low2.4ColdwaterLow UV, 2.4CarthagenaCelinaChickasawColdwaterEastview ParkFort RecoveryGrand Lake Saint Marys State ParkGrand Lake St Marys SPBHamrick AirportLakefield AirportMaria SteinMendonMercer Wildlife AreaMontezumaMontezuma BayMulholland AirportRockfordSt HenrySt Johns