Mercer County UV ForecastUnited StatesOHMercer CountyLow1.9CelinaLow UV, 1.9Moderate3.1Fort RecoveryModerate UV, 3.1Low1.9RockfordLow UV, 1.9Low1.9ColdwaterLow UV, 1.9CarthagenaCelinaChickasawColdwaterEastview ParkFort RecoveryGrand Lake Saint Marys State ParkGrand Lake St Marys SPBHamrick AirportLakefield AirportMaria SteinMendonMercer Wildlife AreaMontezumaMontezuma BayMulholland AirportRockfordSt HenrySt Johns