Hot, dry weather to regain control in Chicago

After a short respite, heat and humidity will return to Chicago this week for what appears to be a lengthy stay.
Afternoon maximum temperatures should climb into the 90s today—an event that promises to repeat itself each afternoon through Thursday.
For the most part, prospects for precipitation remain bleak, though an isolated thunderstorm could develop on a hot and increasingly humid Monday afternoon. The week’s best chances for rain will occur Thursday night as a cold frontal passage brings the city another refreshing break after a week of hot weather.
With the recent demise of Tropical Storm Franklin, the Atlantic Basin is currently tropical cyclone-free, but things could change quickly in the next day or two if a strengthening tropical wave approaching the Windward Islands becomes the eighth storm of the season: Harvey.