A heat advisory has been issued until 7 p.m. Tuesday as the heat index will reach near 100 degrees this afternoon.
The advisory is in effect for southwest Ohio and southeast Indiana.
The extreme heat and dry conditions prompted the Cedarville Fire Chief in Greene County to upgrade the city's burn status to yellow for the first time this year.
Highs will be close to the mid-90s Tuesday, and there will be plenty of sun to go along with the hot and humid weather, said WHIO-TV Meteorologist Rich Wirdzek.
There will be a few clouds at times tonight, but it will stay very warm and muggy, he said. Lows will be in the low 70s.
Tuesday will be hot and humid, with highs around 90 and the heat index in the mid-90s. Sun will give way to some afternoon clouds with a few showers and thunderstorms possible, he said.
On Thursday, a cold front will bring scattered showers and thunderstorms to the area. It will be cooler with highs in the low 80s.