It's going to be a scorcher Wednesday in South Florida.
The National Weather Service first issued a heat advisory for all of Miami-Dade County from 11 a.m. to 6 p.m. It was later extended to include Broward and Palm Beach counties.
"Dangerous heat is expected for South Florida -- all of South Florida," Local 10 News meteorologist Julie Durda said.
Heat index values will range from 105 to 110 degrees throughout portions of South Florida.
Temperatures were already 87 degrees in Miami and 85 degrees in Fort Lauderdale at 9 a.m.
A heat advisory was also in effect for Collier County in southwest Florida and the upper Keys.
"You need to stay hydrated," Durda said. "We want you to make sure that you're wearing light clothing. Make sure you check on the elderly."
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