A cold front will allow much cooler (and less humid) air to overtake the region from Wednesday night through Friday morning. Highs Thursday will only reach the mid 70s, and lows Thursday night/Friday morning will dip to near 50° away from the lakeshore. Areas well northwest of Toledo may even drop into the upper 40s.
The stretch of Wednesday, Thursday & Friday nights will be the coolest since early July. The last time we had a low of near 50° was a 49° at Express Airport on July 2.