Weather Alerts For Franklin Park, IL

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT /11 PM EDT/ THIS EVENING # DETAILS -------------------- WHAT Peak heat index values this afternoon of 100 to locally 110 degrees. WHERE Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN Until 10 PM CDT /11 PM EDT/ this evening. IMPACTS Hot temperatures and high humidity may cause heat illnesses especially after several days of dangerous heat. ISSUED AT Friday, September 4, 2026 at 9:44 AM CDT ISSUED BY National Weather Service Chicago IL HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Consider altering outdoor plans. If outdoors for prolonged periods of time, wear lightweight and loose fitting clothing. Take action when you see symptoms of heat exhaustion and heat stroke. # AREAS AFFECTED -------------------- Central Cook, Kendall, Benton, Boone, De Kalb, DuPage, Eastern Will, Ford, Grundy, Iroquois, Jasper, Kane, Kankakee, La Salle, Lake IN, Lee, Livingston, McHenry, Newton, Northern Cook, Northern Will, Ogle, Porter, Southern Cook, Southern Will, Winnebago Including the cities of Valparaiso, Northbrook, Hammond, Oxford, Woodstock, La Salle, Mokena, Evanston, La Grange, Carol Stream, Oak Lawn, Ottawa, Gilman, Des Plaines, Rensselaer, Calumet City, Roselawn, Pontiac, Crystal Lake, Beecher, Byron, Plainfield, Marseilles, Yorkville, Joliet, Bourbonnais, Palatine, Park Forest, McHenry, Oak Forest, Morris, Dwight, Naperville, Kankakee, Orland Park, Rochelle, Lombard, Paxton, Kentland, DeKalb, Gibson City, Oregon, Channahon, Minooka, Manhattan, Schaumburg, Chicago, Bradley, Crete, Lemont, Watseka, Sycamore, Cicero, Algonquin, Downers Grove, Wilmington, Coal City, Aurora, Fairbury, Dixon, Wheaton, Plano, Mendota, Belvidere, Gary, Fowler, Oak Park, Peotone, DeMotte, Rockford, Streator, Portage, Bolingbrook, Merrillville, Oswego, Elgin, Morocco, and Chesterton

Closest strike: 21.41 miles Monitor Storms You are not at immediate risk, but frequently check WeatherBug to see if storms are moving towards you. Be aware that new storms can also form with little notice.

Pollen Index: 10.5 Pollen Level: high Predominant Pollen: Ragweed, Chenopods and Nettle. The amount of pollen in the air for Saturday will be falling in the moderate range. This lowering of pollen concentrations is a result of falling temperatures, rising humidity, and expected precipitation in the morning and evening which tends to wash pollen out of the air. With this amount of reduction in pollen levels, tomorrow should be better for allergy sufferers.