Tuesday will start out sunny with clouds arriving in the afternoon. Cooler conditions near the lake and lower humidity. High 83, upper 70s by the lake.
Tuesday night will be partly cloudy and mild. Low of 65 with cooler conditions in outlying areas.
Wednesday will have increasing clouds. It will be a bit warmer and muggier too. High of 86.
Full forecast details and more at the WGN Weather Center blog
The extended outlook brings rain back into the forecast on Thursday with some light rain at times and a chance of isolated thunderstorm with highs in the upper 70s. Friday looks to have a few showers/thunderstorm and highs in the low 80s.