Thursday is another sunny and warm day with highs expected to near 80 by the afternoon, if not remaining in the upper 70s. A shower or weak thunderstorm may be possible from 4-10 p.m. but this will be very isolated and most will be dry.

A windy and warmer day across Chicago as a storm threat develops after dark. Highs reach the upper 70s and lower 80s with the coolest readings along the lakefront. The record today at Chicago O'Hare is 81° in 2012.