Chicago Weather August 19, 2023 6:02 pm CHICAGO'S FORECAST: Heating Up on Sunday Temps climb into 90s with heat index values near 100. Local 0:29 Museum of Science and Industry debuts new name in honor of Ken Griffin's donation 2:03 Parishioners hold out hope to save Our Lady of Lourdes Catholic Church even after final mass 2:08 Girlfriend denied pretrial release after allegedly orchestrating Bridgeview man's murder 2:21 Chicago Forecast: Brief break from the heat today 0:58 Multiple shootings reported across Chicago Sunday