News Summary
In July, Jacksonville recorded its hottest month ever, with temperatures exceeding 98°F on multiple occasions. A heat dome and high humidity contributed to the extreme conditions, prompting a heat advisory for much of Florida. Residents are urged to take precautions against heat-related illnesses as the heat persists. Meanwhile, meteorologists are monitoring potential tropical developments that may bring some moisture and relief from the heat.
Jacksonville Experiences Record-Breaking Heat in July 2025
July 2025 has been officially recorded as the hottest July ever in Jacksonville. The Jacksonville International Airport recorded temperatures of 98 degrees Fahrenheit or higher on more than nine separate days during the month. The period between July 26 and July 29 marked a significant shift in temperatures, with multiple days tying or breaking previous daily temperature records.
In examining the month as a whole, Jacksonville ranked as the fourth hottest July based strictly on afternoon daily maximum temperatures. This extreme heat can be attributed to a ridge of high pressure that settled over the southeastern United States, creating a heat dome effect which further reduced nighttime cooling. Additionally, elevated humidity levels coupled with urban heat retention contributed to persistently warm overnight lows, resulting in exceedingly uncomfortable conditions for residents and visitors alike.
The combined average of daily highs and lows throughout the month made July not only the hottest in Jacksonville but also set a record in Gainesville, where similar temperature extremes were reported. Other cities across the state of Florida and the broader Southeast region also experienced a wave of extreme heat, breaking long-held records as the month progressed.
Heat Advisory in Effect
In response to the extreme conditions, the National Weather Service has advised residents to take precautions throughout the day to protect themselves from the heat. While a slight chance of scattered showers and thunderstorms is forecast for the afternoon of August 1, it is unlikely to provide significant relief from the oppressive temperatures.
Upcoming Weekend Forecast
Looking ahead, forecasts indicate high temperatures around 96 degrees over the upcoming weekend, with a “Slight Risk” of excessive rainfall anticipated in areas located north of Interstate 10. Heavy rainfall is expected in Northeast Florida and Southeast Georgia, with total rainfall projections reaching 2-4 inches and localized amounts even higher, up to 6 inches.
Travelers are advised to exercise caution due to potential hazards caused by slick roads and heavy downpours resulting from the anticipated rain over the weekend.
Tropical Development Monitoring
In addition to heat concerns, meteorologists are closely monitoring potential tropical development in an area northeast of Florida. This tropical system may bring some moisture, potentially providing relief from the enduring heat. The Atlantic hurricane season, which began on June 1 and extends through November 30, has seen limited activity thus far but is expected to intensify as we move further into the season. The next named storm is predicted to be named Dexter.
The National Hurricane Center continues to monitor several tropical waves, including two currently in the Caribbean. However, no immediate development is expected at this time, providing some reassurance to those concerned about storm activity.
As Jacksonville and surrounding areas cope with these unprecedented heat levels, local authorities are emphasizing the importance of staying hydrated, seeking shade or air conditioning, and remaining vigilant during outdoor activities.
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Additional Resources
- Jacksonville Weather Weekend Forecast
- Hottest July in Jacksonville’s History
- National Hurricane Center Forecast
- Wikipedia: Weather in Jacksonville
- Encyclopedia Britannica: Jacksonville, Florida
Author: STAFF HERE JACKSONVILLE WRITER
The JACKSONVILLE STAFF WRITER represents the experienced team at HEREJacksonville.com, your go-to source for actionable local news and information in Jacksonville, Duval County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the Jacksonville Jazz Festival, Riverside Arts Market, and World of Nations Celebration. Our coverage extends to key organizations like the Jacksonville Chamber of Commerce and JAXUSA Partnership, plus leading businesses in logistics, healthcare, and entertainment that power the local economy such as CSX Corporation, Baptist Health, and VyStar Credit Union. As part of the broader HERE network, including HEREOrlando.com, HEREStPetersburg.com, HERETallahassee.com, and HERETampa.com, we provide comprehensive, credible insights into Florida's dynamic landscape.
