Residents are reminded to take precautions because hot temperatures and high humidity can cause heat illnesses
Hillsborough County, Fla. (July 29, 2025) - Hillsborough County is under an extreme heat warning today. The National Weather Service issued the extreme heat warning for the entire county effective today, July 29, from noon to 7 p.m. Residents are encouraged to stay indoors, stay hydrated, and check on vulnerable neighbors and loved ones.
The extreme heat warning means that dangerously hot and humid conditions are expected with a heat index over 112 degrees throughout Hillsborough County. The heat index is what the temperature feels like.
Hillsborough County's Office of Emergency Management and its partners will continue to monitor the situation and offer guidance to residents.
Without taking precautions, hot temperatures and high humidity may cause heat illnesses or even death. Do not leave young children or pets in unattended vehicles. Car interiors can reach lethal temperatures in a matter of minutes.
Residents can visit Hillsborough County's Extreme Heat Information page to learn how to stay cool in Hillsborough County, how to stay safe during extreme heat, and more on heat-related illnesses.
People without access to adequate air conditioning can take refuge in public places, including libraries or shopping malls. Residents also can refill water bottles in County parks, libraries, or government buildings across the county.
Residents who work or spend time outside during the hottest part of the day are encouraged to take precautions. When possible, reschedule strenuous activities to the evening or early the next morning. Know the signs and symptoms of heat exhaustion and heat stroke.
To reduce risks during outdoor work, the Occupational Safety and Health Administration recommends taking frequent rest breaks in shaded or air-conditioned environments. Anyone suffering from a heat-related illness should be moved to a cool, shaded location. Heat stroke is an emergency. Call 911 for immediate care.
Hillsborough County Homeless & Community Services is working with local organizations to assist the vulnerable homeless population.
Heat-related illnesses and deaths are largely preventable with proper planning, education, and action. Visit Heat.gov for information about how excessive heat affects your health and ways to reduce the impacts of extreme heat.
Get Connected. Stay Alert.
For more information on any other potential emergency in the county, visit HCFL.gov/StaySafe and sign up for the HCFL Alert system. Additionally, you can follow Hillsborough County on social media at Facebook, X, and Nextdoor for updates. Residents without digital access are encouraged to call (813) 272-5900, the County's main information line.