Mercer County UV ForecastUnited StatesOHMercer CountyLow2.2CelinaLow UV, 2.2Low2.4Fort RecoveryLow UV, 2.4Low2.2RockfordLow UV, 2.2Low2.2ColdwaterLow UV, 2.2CarthagenaCelinaChickasawColdwaterEastview ParkFort RecoveryGrand Lake Saint Marys State ParkGrand Lake St Marys SPBHamrick AirportLakefield AirportMaria SteinMendonMercer Wildlife AreaMontezumaMontezuma BayMulholland AirportRockfordSt HenrySt Johns