Weather News

South Florida might break a heat record for the third day in a row. When will it end?

Man, it’s been hot out there.

And Tuesday’s temperatures might even break a 78-year-old heat record.

Update: While no maximum heat record was broken Tuesday, a cold front is heading to Florida and there will be some change in Miami.

If it does, it’ll be South Florida’s third consecutive day of sizzling record-breaking heat this week.

How hot are we talking about?

Miami’s forecast high of 89 Tuesday is only a few jumps away from tying or surpassing the 92 degree heat record of 1941, according to the National Weather Service in Miami. Fort Lauderdale will be even closer to matching or breaking the 90 degree record of 1969. Key West is in the same boat and could tie or break the old record high of 89 degrees.

On Wednesday morning, the National Weather Service said that while Miami and Marathon both tied with their respective record high minimum temperature Tuesday, no maximum heat record was set.

Miami’s high of 90 degrees Tuesday fell short of the 92 degree heat record of 1941, according to the National Weather Service in Miami. Fort Lauderdale and the Keys also almost tied or surpassed Tuesday’s maximum heat record.

This month could become one of the top three warmest Octobers in the Keys, according to the Keys weather service.

If all this sweltering heat seems abnormal to you, it’s because it kind of is.

Forecasters say South Florida usually sees a high of 86 in October, but sometimes Mother Nature likes to pretend it’s still summer.

Like on Monday, when Miami tied with last year’s 91 degree heat record or on Sunday, when Miami’s 92 degree heat broke a 109-year-old-record of 91 degrees.

Whether South Florida breaks another heat record or not, one thing is clear: It’s going to feel like you’re walking in 100 degree weather, according to the service’s hazardous weather outlook. So, you might want to swap your afternoon run for a dip in the pool.

If you’re traveling to Southwest Florida on Tuesday, make sure you stay hydrated. Inland portions of the area could see the heat index reach the mid 100s, according to the weather service.

So, when will this heat end?

A slight reprieve could come Wednesday when a cold front is expected to briefly visit South Florida, causing temperatures to drop slightly into the low-80s, according to forecasters. But it won’t last long. The temps are expected to rise into the upper-80s again later this week.

Need some good news?

Our rain chances are expected to stay low until later in the week. Then the forecast shows a 40% to 60% chance of rain at least until Sunday. Who knows, maybe the rain will actually make the heat bearable.

This story was originally published October 22, 2019 at 8:41 AM.

Michelle Marchante
Miami Herald
Michelle Marchante covers the pulse of healthcare in South Florida and also the City of Coral Gables. Before that, she covered the COVID-19 pandemic, hurricanes, crime, education, entertainment and other topics in South Florida for the Herald as a breaking news reporter. She recently won first place in the health reporting category in the 2025 Sunshine State Awards for her coverage of Steward Health’s bankruptcy. An investigative series about the abrupt closure of a Miami heart transplant program led Michelle and her colleagues to be recognized as finalists in two 2024 Florida Sunshine State Award categories. She also won second place in the 73rd annual Green Eyeshade Awards for her consumer-focused healthcare stories and was part of the team of reporters who won a 2022 Pulitzer Prize for the Miami Herald’s breaking news coverage of the Surfside building collapse. Michelle graduated with honors from Florida International University and was a 2025 National Press Foundation Covering Workplace Mental Health fellow and a 2020-2021 Poynter-Koch Media & Journalism fellow.  Support my work with a digital subscription
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