If you were planning an early start on Sunday morning, you've been warned to rug up or change your plans, with temperatures expected to be the coldest in two years.
Don't let the mostly sunny day fool you, as Sydney is predicted to experience a minimum of 5 degrees on Sunday, more than three degrees below the July average.
Jordan Notara from the Bureau of Meteorology said the predicted temperature would be the coldest morning since August 2015.
"It's going to be a chilly morning, with temperatures expected to be on the cooler end of the scale," Mr Notara said.
"The reason behind the drop is because Sydney will experience a series of fronts, with one coming down on Sydney on Saturday night.
"A high pressure system will also cover the whole state, with clear skies and air measures giving it a cool change."
On Saturday, Sydney will see a mostly sunny day, with a minium of 10 degrees and maximum of 18, before dropping to 5 degrees and a top of 17 on Sunday.
Mr Notara said the temperatures NSW will experience on the weekend is not out of the ordinary for this time of the year.
Temperatures are expected to return to average on Monday.
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