BROWARD COUNTY, Fla. — A heat advisory is in effect on Saturday for Miami-Dade and Broward counties as dangerous heat and humidity return to South Florida to start August.

Heat index values are expected to climb above 105 degrees this afternoon, creating hazardous conditions before scattered showers and thunderstorms develop later in the day, according to the National Weather Service.

Local 10 meteorologist Jennifer Collins said temperatures were already in the low 80s early Saturday morning, with readings of 82 degrees in Miami and 81 in Fort Lauderdale by 6 a.m. She says the highest heat index values will occur during the early afternoon before storms begin developing around 3 p.m.

Collins said South Florida has recorded 51 consecutive days with temperatures at or above 90 degrees, approaching the record of 54 straight days set in 2023.

With a primarily west wind, storms are expected to form inland across Miami-Dade and Broward counties before moving toward the east coast. Some storms could produce heavy rainfall.

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