Chicago will get record-breaking heat this week. Temperatures on Tuesday feel like the triple digits. The National Weather Service says the city might see a historic stretch of 90-degree days in years. The muggy conditions make it worse. Storms late Saturday and may drop heavy rain and gusty winds. Forecasters say the storms may last only briefly. Thunder chances increase later. Police reported a gunfire incident near East 47th Street early Saturday after a robbery attempt failed. No more details have been released.