The heat advisory for South Florida has been extended through 7 p.m. Monday and includes mainland Monroe as well, the National Weather Service announced Sunday evening.
Heat index values will reach 105-110 degrees between 11 a.m. and 7 p.m. on Monday afternoon, the weather service said.
South Florida temperatures did not break any heat records Saturday, but tied records for never quite cooling down.
Miami’s high temperature was 93 degrees, one degree shy of the record high reached on Aug. 12, 1994. But the lowest temperature reached Saturday was 83 degrees. The last time the daily low was that high was in 1976, according to the National Weather Service.
In Fort Lauderdale, Saturday’s high was 92 degrees. The previous high for that date was 98, set in 1955. Saturday’s low was 84 degrees, and the last time it stayed that high was 1915.
For the coming week, the weather service is predicting daily high temperatures in the low 90s and low temperatures around 80. Chances of rain are 40% on Monday and at least 60% the rest of the week.
Rafael Olmeda can be reached at rolmeda@sunsentinel.com or 954-356-4457.