National Weather Service United States Department of Commerce

The high pressure that has been providing us with cooler conditions will shift east, allowing a return of warm and humid conditions across the region. Temperatures return to above average.
A complex of thunderstorms is expected to dive south from the northwestern Great Lakes region Sunday evening into the overnight. Currently, storms are expected to dive into Indiana, possibly clipping western Ohio. Storm coverage will not be widespread and will be hit or miss. The storm complex will have the capability of producing damaging wind gusts, which may blown down tree limbs or cause isolated power outages.
Thunderstorms are expected Monday evening into the overnight hours. Some of the storms may be severe. Damaging winds will be the main threat. Confidence on exact timing and location is low at this point. Storms will have locally heavy rainfall, which may result in localized flooding issues.