CHICAGO — Scattered thunderstorms Wednesday morning will give way to partly cloudy skies by midday. 

A Flash Flood Warning issued for southern Cook County, including Orland Park, Tinley Park and Chicago Heights, and parts of Will County expired at 9:45 a.m.

The rain complicated the morning commute, causing crashes and delays on area expressways and tollways.

ComEd is reporting over 3,000 are without power due to storms in Illinois, and just over 1,000 in Northwest Indiana.

Isolated showers are possible late this afternoon as temperatures fall from highs in the mid-80s to the upper 70s for the evening commute. 

Isolated showers are possible this evening, then temperatures fall into the mid-60s under mostly cloudy skies. 

Future Forecast: Thursday and Friday will stay mostly cloudy with inland highs in the lower 70s, but mid to upper 60s lakeside.