Wilmington, Ohio — Sweltering heat and humidity grip southern Ohio on Wednesday, with heat index values soaring as high as 107°F in Portsmouth, prompting ongoing heat advisories through 8 p.m. tonight.
According to the National Weather Service in Wilmington, heat index readings will peak between 102°F and 107°F across cities including Cincinnati, Dayton, Chillicothe, and Portsmouth. Cincinnati expects a heat index of around 104°F, while Dayton and Chillicothe will hit 102°F. Heat advisories remain in effect for counties including Hamilton, Montgomery, Ross, and Scioto.
Dangerously high temperatures pose a significant risk of heat-related illness, especially for vulnerable populations. Emergency officials advise limiting outdoor exposure, drinking plenty of fluids, and staying in air-conditioned locations. Residents should check regularly on elderly family members, neighbors, and pets.
Relief arrives Thursday with a cold front dropping heat index values sharply—Columbus will see values around 79°F, while northern cities like Celina and Sidney will experience much cooler conditions, closer to the mid-70s.
Stay vigilant today and monitor updates as conditions evolve. Additional advisories may be issued if heat persists longer than anticipated.
