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Cooling fans are a hit at the Zoo

Travis Parker, from Dallas, Texas, holds his daughter, Vivienne Parker, 2, in front of the cooling fans on Monday, July 10, 2017, at the St. Louis Zoo. Parker is originally from O'Fallon, Mo., but moved his family to Dallas. He said the St. Louis Zoo is much better than the Dallas Zoo. Photo by J.B. Forbes,

The St. Louis area is in store for more oppressive heat Thursday, according to the National Weather Service. 

The heat advisory that began Monday has been extended until 7 p.m. Thursday for the St. Louis metro area, according to the weather service. 

Actual temperatures are predicted to be slightly cooler Thursday with a high of about 96 degrees compared to today's 103. But an increase in humidity will mean conditions Thursday will feel just as hot on the skin as earlier in the week, weather service meteorologist Gary Schmocker said. 

"You lose one, but you gain another," Schmocker said. "But to anybody outside, it will basically feel just as bad." 

Wednesday was the third day in a row with temperature highs above 100 degrees in St. Louis. A similar stretch hasn't happened in the city since July 2012, Schmocker said. 

The weather service recommends drinking extra water and, when possible, rescheduling strenuous outdoor activities to the early morning or evening. 

Car temperatures can also become lethal in a matter of minutes during these conditions so no pets or children should be left unattended for any period of time, the weather service warns. 

The extended heat advisory will be in effect Thursday for Jefferson, St. Charles and St. Louis counties as well as the city of St. Louis.  

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