Comfortable temperatures continue through Friday before heat and humidity return this weekend. Forecasters are watching the potential for showers, storms and possible severe weather heading into Monday. Hot Chicago weekend, storms possible MondayWhat's next:Things should get a little warmer on Friday, but not by much, with highs in the lower 80s. The weekend forecast still shakes out to be pretty warm, if not hot. Highs are expected to hold in the mid to upper 80s for Tuesday and Wednesday of next week.