We’ve had a week of South Florida heat advisories. When will it end?
And on the seventh day, we sweated. Again.
South Florida has been under a heat advisory for a weeklong stretch, according to the National Weather Service in Miami. The heat index — humidity mixed with the air temperature — has been 105 or higher for several hours each of the days, triggering the alerts.
On Wednesday, the weather service issued a heat advisory, with a feels-like index temperature of 105 to 108 degrees, between 11 a.m. and 7 p.m. for Miami-Dade and Broward counties. The regular air temperature is forecast to be about 90.
Tuesday’s 106 heat index ties a record for an Aug. 5, according to CBS News Miami meteorologist Lissette Gonzalez. The highest recorded heat index in Miami was 114 on Aug. 9, 2023, according to research from NOAA and Brian McNoldy, a senior research associate at the University of Miami’s Rosenstiel School.
Peak heat
Gonzalez of CBS News Miami, a Miami Herald news partner, puts 2 p.m. as the hottest point of Wednesday with an index of 103. The index should reach triple digits at noon and hover in that range around 101 until dipping to 99 at 6 p.m.
The rain chance is around 30% in the western areas of Miami-Dade and Broward around 3 p.m. but much of that wetness seems headed into the Everglades, she said.
Heat relief on the way
Will there be an eighth consecutive heat advisory day in South Florida? Quite possible.
Regular highs are still forecast around 90 Thursday through the weekend and into the coming Tuesday.
But increased rain is also likely starting mid- to late-morning Thursday, Gonzalez said.
The National Weather Service puts rain and storm chances at 60% to 70% for the Fort Lauderdale area Thursday and Friday and 80% on Saturday. The Miami area eyes 80% Thursday through Saturday, dipping to 60% Sunday and Monday with the thunderstorms most likely after 2 p.m. but possible at any point during the day hours, dropping during the nights.
The increased rain could drop temperature lows to the mid-80s at night.
What you should do
“Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors,” the weather service said in its advisory.
This story was originally published August 6, 2025 at 11:10 AM.
