Mercer County UV ForecastUnited StatesOHMercer CountyLow2.7CelinaLow UV, 2.7Low2.8Fort RecoveryLow UV, 2.8Low2.7RockfordLow UV, 2.7Low2.7ColdwaterLow UV, 2.7CarthagenaCelinaChickasawColdwaterEastview ParkFort RecoveryGrand Lake Saint Marys State ParkGrand Lake St Marys SPBHamrick AirportLakefield AirportMaria SteinMendonMercer Wildlife AreaMontezumaMontezuma BayMulholland AirportRockfordSt HenrySt Johns