Weather Alerts For Grafton, IA

# HEADLINE -------------------- EXTREME HEAT WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH TUESDAY EVENING # DETAILS -------------------- WHAT Dangerously hot conditions with heat index values exceeding 100 degrees multiple days. WHERE Grundy, Butler, Cerro Gordo, Franklin, Hancock, Winnebago, Worth, Black Hawk, and Bremer Counties. WHEN From Sunday afternoon through Tuesday evening. IMPACTS Heat related illnesses increase significantly during extreme heat and high humidity events. ADDITIONAL DETAILS Excessive heat will persist through much of next week, potentially including the 4th of July weekend. ISSUED AT Saturday, June 27, 2026 at 12:50 PM CDT ISSUED BY National Weather Service Des Moines IA 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. # AREAS AFFECTED -------------------- Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy, Hancock, Winnebago, Worth Including the cities of Manly, Greene, Dike, Cedar Falls, Grundy Center, Shell Rock, Forest City, Northwood, Clarksville, Waverly, Wellsburg, Mason City, Clear Lake, Allison, Conrad, Aplington, Lake Mills, Dumont, Kanawha, Reinbeck, Hampton, Garner, Britt, Waterloo, and Parkersburg