All data suggests above normal temperatures will persist into autumn. However, it should be noted that the above normal temperatures will be driven more from the night time lows than daytime maximum temperatures. This means we do not expect many days above about 90 for the maximum temperatures. So that is some good news.
There is also some more good news. There are rain chances in the next 7-10 days across Ohio. However, confidence is low on the placement of rainfall. It appears the heaviest rain will be along and east of Interstate 71. Rainfall totals of 1-3 inches are possible east of I-71 the next 2 weeks. Normal rainfall is about 1.5 to 2 inches inches so above normal rainfall is expected there. West of I-71 it is more unclear on how much will fall. We do expect rainfall but the further northwest in the state of Ohio the less. Indiana will see even less rainfall. Rainfall totals northwest of I-71 will be more common less than 1 inch than more. Isolated places could get limited amounts.
The outlook for the rest of August calls for temperatures 1-5F above normal and rainfall below normal northwest half and normal or slightly above southeast half. The outlook for September calls for continued above normal temperatures and rainfall at or below normal. Evapo-transpiration will also continue at or above normal into September.
Looking further ahead, the main pattern change from warmer and drier to cooler and wetter may not come until November or December as a possible La Nina influence kicks in.