WELCOME to the city of sweat. Sydney’s summer of stinkingly-uncomfortable heat and humidity has continued with temperatures topping 40C as other parts of NSW also swelter.

With a warm-up of the hottest January on record behind it, the city steamed into the first Sunday of February with temperatures topping 40C in several areas by 3pm.

Sydneysiders, fresh from the hottest January on record, are again set to swelter with the brief respite of cooler days and nights set to end on Saturday. Several areas of Sydney had topped 40C At Bankstown at 1.45pm it was 42.7C, at Sydney Olympic Park, and Penrith is was 42.3C, and Camden, Canterbury, Horsley Park and Badgerys Creek Creek has all topped 41C.

Closer to the CBD, temperatures at Observatory Hill hit 34.9C at 12.40pm, and 38.6C at Sydney Airport.

The NSW/QLD #heatwave continues with some relief along the NSW coast Tues. #Sorching heat persists all week inland https://t.co/uJ0YPJ8dL6 pic.twitter.com/Ne61o1e9wD — BOM Australia (@BOM_au) February 4, 2017

Temperatures in the city had reached 30C by 9am, signalling a sweaty Sunday ahead.

In the NSW Central West, temperatures at Forbes, Condoblin and Parkes topped 40C by 2pm.

And in the NSW west, it was even worse: at Wilcannia Airport at 2pm the mercury hit 45.5C and Bourke was 42.5C.

And it seems there’s little respite in sight, especially in the west, and in Queensland as the heatwave stretches on.

Birdsville, in Queensland’s far west is tipped to reach 48C next Tuesday, the same time Bourke is forecast to hit 46C.

On Monday in Sydney, city temperatures are forecast to hit a top of 35C and 41C in Penrith.

There’s a slight chance of a shower or thunderstorm in the evening, according to the Bureau Of Meteorology, with a southerly change bringing 30 to 45km/h winds in the evening, and a minimum overnight temperature of 25C.

Victoria and South Australia will also feel the brunt of another scorching heatwave that will see temperatures dip briefly to the mid-20s on Thursday, before rising back up the 40s on Friday.