Chicago weather: Clear nights, sunny days ahead for the weekend

CHICAGO - As Friday evening settles in, clear skies will usher in a cool night, with temperatures dipping into the refreshing 50s.

Come Saturday, expect a sunny start to the day with a few clouds making their appearance by the afternoon. 

Highs will reach the upper 70s. Sunday promises a similar beginning, but temperatures will climb into the 80s by the afternoon.