Jacksonville is facing excessive heat this weekend, with the heat index expected to top 100 degrees across the area. News4JAX meteorologist Katie Garner from The Weather Authority breaks down what to expect and how to stay safe.

Jacksonville is under a heat advisory with high temperatures expected to reach up to 97 degrees and a heat index as high as 108. News4JAX meteorologist Mark Collins says the weekend brings mostly dry weather, with very limited chance of rain.

News4JAX meteorologist Richard Nunn tracks severe thunderstorms and high heat in Jacksonville, with a potential cool down and lower rain chances expected over the weekend. See the latest on what to expect and when to plan your outdoor activities.