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A brief shower or two
A couple of p.m. t-storms
Partly sunny and breezy
Mostly cloudy, rain possible
Some cooler weather is in store for Chicago this week as thunderstorms roll into the area around late week. more >
Nov 12, 2012; 5:00 AM ET
The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.