Heat Advisory Issued for Most of Florida as Heat Index Reaches 112°F
A heat advisory has been issued for 62 of Florida's 67 counties on Tuesday, August 11, 2026, due to dangerously high heat index values. The National Weather Service (NWS) forecasts heat index values reaching up to 112°F (44.4°C) in some areas, particularly in the Tallahassee region. The advisory is expected to remain in effect through at least Friday, August 14, as hot and humid conditions persist. Nighttime temperatures are not expected to drop below 75°F (23.9°C), compounding the risk of heat-related illnesses. Rain chances are below normal this week, with isolated thunderstorms possible in some areas. The NWS attributes the reduced rain chances to a Saharan Dust Layer, which is also contributing to drier air and strong gusty winds during thunderstorms.