Mercer County Weather ForecastUnited StatesOHMercer County2033CelinaChance Snow2033Fort RecoveryChance Snow1933RockfordChance Snow2033ColdwaterBreezyCarthagenaCelinaChickasawColdwaterEastview ParkFort RecoveryGrand Lake Saint Marys State ParkGrand Lake St Marys SPBHamrick AirportLakefield AirportMaria SteinMendonMercer Wildlife AreaMontezumaMontezuma BayMulholland AirportRockfordSt HenrySt Johns