July was the hottest month on record in Indianapolis, with high temperatures of 90 or above 28 days during the month and highs of 100 or above seven days.

The average temperature for the month was 84 degrees, obliterating the old record monthly average temperature of 82.8 degrees, set in July 1936.

There have been nine 100-degree days so far this year, with Thursday expected to be the 10th. The all-time record in one year is 12.

If Indianapolis' temperature hits 100, it will break the record for the day of 98 degrees, set in 1888.

Though temperatures are expected to cool down slightly in the next few days, highs will still be 10 to 15 degrees above normal through Saturday, Storm Team 6 meteorologist Todd Klaassen said.

A storm system will move into the region beginning Friday, bringing daily chances of showers and thunderstorms through Sunday.

The best chance of rain appears to be on Sunday, when a frontal system will move through, dropping high temperatures to the 80s for the beginning of next week.