Warm overnights tie records, but cooler weather coming

Overnight low temperatures have been unusually warm this week, tying heat records that are decades old.

The National Weather Service in Miami said low temperatures Tuesday and Wednesday dipped to just 75 degrees on the official gauge at Palm Beach International Airport.

That’s 12 degrees above normal for this time of year and ties records for those days from 1990 and 1977, respectively.  The normal overnight low for this time of year is 63 degrees.

Related: Experts tracked hurricanes this season better than ever before.

Melbourne also tied an overnight heat record Wednesday when the temperature dipped to just 73 degrees.

Chris Fisher, a meteorologist with the National Weather Service in Miami, said a stubborn pattern of easterly breezes off the warm Atlantic waters is to blame for the lack of overnight cooling.

Sea surface temperatures off the coast of Palm Beach County have been running about 79 degrees.

“We’ve just had this steady east breeze pulling in the warmer temps off the water,” Fisher said. “If there was a northerly flow, temps would be dropping closer to normal overnight.”

Fisher said there is no major change in the forecast for the near term. This weekend’s temperatures should see highs in the low 80s and lows in the high 60s to low 70s.

But, the long-range forecast is showing a pattern shift deeper into December that may bring cooler temperatures to South Florida.

LIVE RADAR: Check The Palm Beach Post’s radar map. 


AccuWeather is forecasting temperatures in West Palm Beach to reach only into the mid-70s the weekend of Dec. 9, with a drop into the 50s overnight on Dec. 12.

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