Weather Alerts For Putnam, IL

# HEADLINE -------------------- EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON MONDAY TO 9 PM CDT TUESDAY # DETAILS -------------------- WHAT Dangerously hot and humid conditions with multiple days of heat index values of 105 to 110 expected, along with nighttime lows not dropping below 75 degrees. WHERE Portions of north central and northwest Illinois and east central and northeast Iowa. WHEN From noon Monday to 9 PM CDT Tuesday. IMPACTS Heat related illnesses increase significantly during extreme heat and high humidity events. ISSUED AT Sunday, June 28, 2026 at 9:35 AM CDT ISSUED BY National Weather Service Quad Cities IA IL 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 -------------------- Stephenson, Buchanan, Bureau, Carroll, Clinton, Delaware, Dubuque, Henry IL, Jackson, Jo Daviess, Jones, Putnam, Whiteside Including the cities of Geneseo, Dubuque, Galena, Hennepin, Sterling, Maquoketa, Anamosa, Manchester, Freeport, Princeton, Clinton, Independence, and Mount Carroll