Florida Swelters: Heat Dome Bakes Sunshine State

Florida is currently sweltering under a prolonged period of extreme heat and humidity, with July on track to be one of the warmest on record for many cities. As of July 28, numerous locations, including Miami, Jacksonville, Gainesville, Bradenton, and Naples, experienced their top five warmest Julys. Fort Lauderdale and Lakeland notably recorded their hottest Julys.

Pensacola faced its first excessive heat warning in 2026, with forecasted "feels like" temperatures as high as 113 degrees. This intense heat is being driven by a heat dome over the central U.S. and unusual northerly winds. These winds are carrying moisture, potentially from "corn sweat" or evapotranspiration in agricultural regions, contributing to the oppressive humidity that makes the high temperatures feel even more severe.

While official temperatures have been high, the combination of ambient heat and moisture creates dangerous heat index values. Jacksonville is also bracing for extreme heat, with heat index temperatures potentially reaching 115 degrees. Wildfire smoke from the northwest is also contributing to clearer skies and more intense solar radiation in some parts of the state, further intensifying the heat wave.

Despite the oppressive conditions, Floridians are continuing with typical summer activities, including beach visits and bonfires. Businesses renting beach essentials like umbrellas and chairs have reported sold-out inventory. The consistent high temperatures are leading many areas to experience their warmest Julys in decades, highlighting the significant impact of the current weather patterns.