Another summer day without rain

A weak cold front swept through Chicago during the lunch hour Monday, but once again, significant rain failed to materialize until the system was south and east of the city. O’Hare received no rain, while Midway collected only .08". Already the driest summer on record to date, a scant 0.2" of rain has fallen at O’Hare in the 7+ weeks since June 10. Meanwhile, heat statistics are adding up. O’Hare’s 91° and Midway’s 92° are the 13th and 19th days respectively of 90° days in Chicago this summer, more than the last two summers combined.
Monday’s cold front provides one day of relief from the ongoing heat. Another brief cold frontal passage is likely again on Thursday, with oppressive heat to follow over the weekend and into next week. Rain with frontal passage is likely on Thursday, but the computer models have not distinguished themselves and have consistently under forecast temperature and over forecast rain all summer.