Weather News

Sweaty Miami is feeling the 90s. How long will this heat last? What the forecast says

Lissette Rey plays with her Labrador Retriever, Summer, at Hobie Island Beach Park on Monday, May 15, 2023, in Miami, Fla. Miami-Dade announced the start of the heat season and officials with the National Weather Service declared they would lower the threshold for heat warnings and advisories in the county.
Lissette Rey plays with her Labrador Retriever, Summer, at Hobie Island Beach Park on Monday, May 15, 2023, in Miami, Fla. Miami-Dade announced the start of the heat season and officials with the National Weather Service declared they would lower the threshold for heat warnings and advisories in the county. mocner@miamiherald.com

The hot and wet weather season is here, never mind that summer doesn’t officially begin until June 21.

That’s the calendar. This is weather. And the hottest day of the week wasn’t waiting to get going.

By 11:30 a.m. Wednesday, Miami already reached 88 degrees.

Wednesday afternoon should hit 92, according to CBS News Miami meteorologist Lissette Gonzalez. The range runs from 85 in Key West, 88 in Marathon, 89 in Homestead and 90 in Fort Lauderdale.

How long will the heat last in South Florida?

The forecast highs from Wednesday, May 17, 2023, through Saturday, according to CBS News Miami meteorologist Lissette Gonzalez.
The forecast highs from Wednesday, May 17, 2023, through Saturday, according to CBS News Miami meteorologist Lissette Gonzalez. CBS News Miami

The heat will last all summer, of course. But there will be a gradual drop of a degree each day into Saturday, according to Gonzalez.

Thursday’s high in Miami should be 91, and then 90 on Friday and Saturday, she said in her Wednesday morning broadcast.

Lows will be in the upper-70s.

The National Weather Service’s forecast highs are a bit lower.

The Keys will flirt with highs near 90 through Sunday, the National Weather Service in Key West reported.

What about rain?

Scattered thunderstorms are in the forecast over South Florida each day through Tuesday, to varying percentage chances, according to the National Weather Service in Miami.

Wednesday afternoon saw some strong thunderstorm activity, with a wind gust of 55 mph reported near Fort Lauderdale-Hollywood International Airport, the weather service reported at 3:30 p.m. A severe thunderstorm warning was issued for Fort Lauderdale, Hollywood and Dania Beach until 3:45 p.m.

Thursday and Friday afternoon rain chance is 40%, dropping to 30% at night. Saturday and Sunday rain chance is 20% day, 30% night.

The threat of rip currents will increase mainly over Palm Beach County beaches this weekend, the weather service said.

This story was originally published May 17, 2023 at 12:07 PM.

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Howard Cohen
Miami Herald
Miami Herald consumer trends reporter Howard Cohen, a 2017 Media Excellence Awards winner, has covered pop music, theater, health and fitness, obituaries, municipal government, breaking news and general assignment. He started his career in the Features department at the Miami Herald in 1991. Cohen is an adjunct professor at the University of Miami School of Communication. Support my work with a digital subscription
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