After enduring the hottest January on record, Sydneysiders can expect to swelter through another warm day on Sunday, with temperatures going above the mid-30s.
The mercury will hit the "high 30s, even low 40s" across the Sydney metropolitan area, says Peter Zmijewski, senior forecaster at the Bureau of Meteorology.
Weatherzone forecaster Joel Pippard says that there is a "very high chance" that temperatures in February will match the oppressive levels of heat seen last month.
"We did have the hottest December on record, the hottest January on record, there's nothing that's really saying that trend is going to stop or change," Mr Pippard says.
Tomorrow's temperatures are likely to be the tenth time the mercury has soared above 35 degrees in Sydney this summer.
However, there may be reprieve from the hot spell on Sunday afternoon or evening, with a "slight chance of rain or thunderstorm", senior forecaster at the Bureau, Peter Zmijewski says.
Overnight on Sunday will be a balmy 24 to 25 degrees. It won't "be as hot as previous nights" in January, which saw a record high for overnight temperatures, says Mr Pippard.
The hot temperatures are likely to remain on Monday, with a top of 32 degrees in the city and 39 degrees out in Penrith, according to Weatherzone forecasts.
Relief is in sight on Monday afternoon when a strong southerly change is tipped to sweep in.
"We are expecting cooler conditions to develop Monday afternoon and evening and then the milder conditions will continue on Tuesday and Wednesday," Mr Zmijewski said.
Mr Pippard from Weatherzone predicts temperatures to be above average, reaching highs of 27 degrees in the city and 29 in Penrith on both weekdays.
The heat is due to set back in on Thursday, before reaching a peak next Saturday, which at this stage is "looking to be hotter than Sunday," Mr Pippard says.
Looking regionally, large areas of northern and central NSW are heading towards stormy weather on Saturday afternoon, according to the Bureau. The area may be struck with destructive winds, heavy rainfall and hail.