Heat index values, the “feels like” temperatures, could potentially reach 110 degrees on Tuesday. Overnight temperatures are only expected to drop to the mid-to upper 70s. Climate change is making the Chicago area more humid, which increases heat index, and makes the nights hotter. While everyone is encouraged to drink plenty of fluids and seek air-conditioning, older adults, children and people with upper respiratory issues are advised to avoid outdoor exposure for extended periods.
Chang Liu, of South Bend, IN, cools off at Burnham Park in Chicago after a 27-mile bike ride in the city with the region under an excessive heat warning on Monday, Aug. 26, 2024. (Terrence Antonio James/Chicago Tribune)People walk west on Adams Street towards Union Station in Chicago in the afternoon sunlight as the temperature hovers near 100 degrees on Monday, Aug. 26, 2024. (Terrence Antonio James/Chicago Tribune)Caroline McIntyre, 2, plays at Margaret Donahue Park in Lake View on Monday, Aug. 26, 2024. (Eileen T. Meslar/Chicago Tribune)People relax in the shade as a cyclist rides by at Burnham Park in Chicago with the region under an excessive heat warning on Monday, Aug. 26, 2024. (Terrence Antonio James/Chicago Tribune)Paletero Gonzalo Garcia walks on North Avenue Beach selling ice cream on Monday, Aug. 26, 2024. People filled the beaches around the city as the National Weather Service issued an excessive heat warning from Monday afternoon to Tuesday evening. (Eileen T. Meslar/Chicago Tribune)Reflected afternoon sunlight splashes onto pedestrians and steps on Wacker Drive near Adams Street in Chicago on Monday, Aug. 26, 2024, with the temperature hovering near 100 degrees. (Terrence Antonio James/Chicago Tribune)Aidan Pazan, of Chicago, exercises at Burnham Park in Chicago with the region under an excessive heat warning on Monday, Aug. 26, 2024. (Terrence Antonio James/Chicago Tribune)A jogger runs near North Avenue Beach on Monday, Aug. 26, 2024. (Eileen T. Meslar/Chicago Tribune)
