Weather Alerts For New Grand Chain, IL

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT /8 PM EDT/ THIS EVENING # DETAILS -------------------- WHAT Heat index values up to 102 degrees are expected. WHERE all of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. WHEN Until 7 PM CDT /8 PM EDT/ this evening. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Sunday, September 20, 2026 at 4:20 AM CDT ISSUED BY National Weather Service Paducah KY HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. # AREAS AFFECTED -------------------- Alexander, Bollinger, Hopkins, Marshall, Scott, Spencer, White, Ballard, Butler, Caldwell, Calloway, Cape Girardeau, Carlisle, Carter, Christian, Crittenden, Daviess, Edwards, Franklin, Fulton, Gallatin, Gibson, Graves, Hamilton, Hardin, Henderson, Hickman, Jackson, Jefferson, Johnson, Livingston, Lyon, Massac, McCracken, McLean, Mississippi, Muhlenberg, New Madrid, Perry IL, Perry MO, Pike, Pope, Posey, Pulaski, Ripley, Saline, Stoddard, Todd, Trigg, Union, Union KY, Vanderburgh, Wabash, Warrick, Wayne IL, Wayne MO, Webster, Williamson Including the cities of Pinckneyville, New Madrid, Fort Branch, Jonesboro, Perryville, Marble Hill, Cadiz, Calhoun, Marion, Golconda, Harrisburg, Mayfield, Elizabethtown, Dixon, Hopkinsville, Clinton, Wickliffe, Albion, Morganfield, McLeansboro, Madisonville, Princeton, Carmi, Bloomfield, Shawneetown, Mount Vernon, Murphysboro, Bardwell, Boonville, Paducah, Charleston, Owensboro, Cape Girardeau, Metropolis, Murray, Fairfield, Herrin, Evansville, Smithland, Van Buren, Henderson, Poseyville, Vienna, Mound City, Petersburg, Elkton, Jackson, Cairo, Greenville, Piedmont, Mount Carmel, Sikeston, Poplar Bluff, West Frankfort, Doniphan, Eddyville, Rockport, Benton, Hickman, and Carbondale

Pollen Index: 9.7 Pollen Level: high Predominant Pollen: Ragweed, Chenopods and Nettle. The quantity of pollen grains in the air for Monday will be falling but will remain in the high range. This change results in part from falling temperatures, lack of strong winds and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air. Relief is in sight.