Weather Alerts For Mammoth Cave, KY

# HEADLINE -------------------- HEAT ADVISORY IN EFFECT FROM 11 AM EDT /10 AM CDT/ TO 8 PM EDT /7 PM CDT/ TUESDAY # DETAILS -------------------- WHAT Heat index values of 105 to 110 expected. WHERE Portions of southwest Indiana, west central, and south central Kentucky. WHEN From 11 AM EDT /10 AM CDT/ to 8 PM EDT /7 PM CDT/ Tuesday. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Monday, July 20, 2026 at 9:26 AM EDT ISSUED BY National Weather Service Louisville 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. # AREAS AFFECTED -------------------- Logan, Allen, Barren, Breckinridge, Butler, Cumberland, Dubois, Edmonson, Grayson, Hancock, Hart, Metcalfe, Monroe, Ohio, Perry, Simpson, Warren Including the cities of Hawesville, Morgantown, Hardinsburg, Bowling Green, Tompkinsville, Brownsville, Glasgow, Horse Cave, Franklin, Tell City, Edmonton, Providence, Leitchfield, Lewisport, Jasper, Scottsville, Hartford, Russellville, and Burkesville