Periods of rain have returned to the Chicago area, with the second round arriving overnight tonight. Waves of rain with occasional thunderstorms are expected to yield rain totals of 0.75"-1" by mid-morning Tuesday.

After a mild and cloudy evening Sunday, the Chicago area is set to experience a week of rapidly changing weather, including rain, cooler temperatures, and even a chance of wet snow.

A powerful winter storm is set to blast portions of the U.S. with heavy snow, cold temperatures, strong winds and rain just as millions of people across the country prepare to travel for Thanksgiving.