Cool conditions in Newcastle today herald a cold, windy change due to arrive in town tomorrow.
The first of the westerly winds, which have been a feature in past years, will cause the drop in temperatures.
"Tops will remain in the high teens today and tomorrow, but will drop to mid-teens over the weekend," said Weatherwatch senior meteorologist Don White.
The coldest nights will occur when the winds are lighter, with minimums of 2 and 3 degrees expected inland on Sunday, Monday and Tuesday.
The change, which is currently moving through Victoria, won't bring rain to the coast.
Mr White said the burst of cold, westerly wind was good news for skiing enthusiasts as it would bring the best snowfall to the Snowy Mountains so far this season.
A coastal waters wind warning has been issued by the Bureau of Meteorology for New South Wales waters between Cape Byron and Smoky Cape and between Port Stephens and Merimbula.