Findlay and Hancock County are included in a Heat Advisory issued by the National Weather Service.
The advisory, which goes from 11 a.m. to 9 p.m. Thursday, actually covers the entire state.
Forecasters say the high temp on Thursday will top out at 97 with a heat index of 103.
The high temperatures and humidity can cause heat illnesses to occur.
People are advised to drink plenty of water, wear loose-fitting clothing and stay in air-conditioning whenever possible.
Young children and pets should never be left unattended in a vehicle.
Friday is also expected to be in the 90s before we drop back into the 80s on Saturday.