Some rivers have been flooding for nearly a week, and emergency officials say the recent rain will prolong the period of high water.
Nearly an inch of rain fell in many areas from Tuesday night through Wednesday afternoon.
Flood Warnings are in effect for Fulton, Henry, Defiance, and Paulding Counties of Ohio, plus Branch County, Michigan. A Flood Advisory continues in Calhoun County, Michigan.
Near Edgerton, in western Williams County, the Saint Joseph River crested about 3′ above flood stage on Monday. It has only fallen about a foot since then, and the midweek rain is now causing it to rise again slightly. The National Weather Service only expects it to rise several inches before falling again, this weekend.
Dry weather from Friday through the middle of the weekend should allow rivers a chance to recover.