Fort Wayne, Indiana – Temperatures across northern Indiana are soaring into dangerous territory Thursday as a heat advisory blankets the region until 8 p.m. EDT. Heat index values could peak between 105 and 108 degrees in cities including Elkhart, Fort Wayne, and South Bend, raising concerns over heat-related illnesses and power strain.
According to the National Weather Service in Northern Indiana, the advisory affects a broad swath from southwest Michigan through northwest Ohio. The first round of excessive heat began before sunrise in counties such as Starke, Cass, La Porte, and White, while an expanded advisory took effect at 11 a.m. across Allen, Whitley, Grant, and DeKalb counties. The oppressive heat is driven by a humid air mass and light winds, limiting relief throughout the day.
In Fort Wayne, officials warn that heat index values could hit 108° by early afternoon. Schools running summer programs and outdoor workers should take extreme precautions. Residents are urged to stay indoors, drink water frequently, avoid strenuous activity, and check on neighbors, especially seniors or those without air conditioning.
Cooling centers are open in South Bend, Elkhart, and Toledo. Public health departments in Steuben and Huntington counties recommend limiting outdoor exposure from noon to 6 p.m., the most dangerous heat window.
The advisory remains in effect until 8 p.m. EDT. Another round of heat is possible Friday, with updates expected later tonight.