Sydney set to get seventh wet weekend in a row

National weather forecast for Wednesday June 26.

Sydney is set to endure its seventh wet weekend in a row, as record rainfall continues to hit the city.

While Saturday has only a slight chance of a shower later on in the afternoon or evening according to BOM forecasters, Sunday will see up to 4mm fall.

It's set to be grim news for Monday to Friday workers, amid yet another dry work week.

Plus parents with kids who play sport will also face yet another soggy wait on the sidelines if events are not cancelled.

Bureau of Meteorology Forecaster Jordan Notara confirmed it will be wet again.

"This system is a frontal system. It's typical winterlike weather," he told 9News.com.au.

Notara said it's too soon to say what the following weekend will be like.

The city has had record rain over the past few weeks

Sydney has now received an entire year's worth of rain in less than six months.

Last weekend's wet weather brought the city's running monthly total up to 361mm, which is more than double the long-term monthly average and Sydney's wettest June since 2007.

May's rainfall in the city and NSW was as much as 300 times more than average in places.

It will be a max of 20 degrees both days, with Saturday set to drop to 8 degrees overnight and Sunday only getting as low as 13 degrees.

The rain will also hang around, with showers forecast on Monday and Tuesday amid lower temperatures with a high of 16 degrees.

Some spots, including Sydney Airport and Rose Bay saw their highest May total rainfall for at least 20 years

Melbourne, Brisbane, Adelaide, Cairns and Hobart will also see a showery weekend.

This week, parts of central Queensland got over a month's rain in 24 hours.

In the 24 hours to 9am on Wednesday, falls of 30 to 60mm were recorded between Mackay and Townsville.

It was also Mackay's wettest June day in 21 years.