Sydney can expect breaks in the dreary weather but showers and bouts of heavier rain are likely to linger well through the Queen's Birthday holiday weekend.

After copping the wettest two-day spell since last June's powerful east coast low, the city will continue to be dogged by rain spells into the middle of next week at least. 

Commuters, though, will get a reprieve on Thursday afternoon before showers return for the evening and early Friday morning, Jacob Cronje, a senior meteorologist with Weatherzone, said.

"For the most part, it looks like it's breaking up a bit [for Thursday afternoon]," Mr Cronje said. "The main rainfall from this event has moved further up the coast."

Still, Sydney can expect rain for each of the coming seven days, making for "a pretty wet Queen's Birthday weekend", he said. "Saturday looks pretty dreary."

The Bureau of Meteorology predicts 10-25 millimetres of rain for Friday, 5-20 mm for Saturday and 4-25 mm for Sunday. Even Monday is likely to collect 10-20 mm.

For the two days to 9am on Thursday, Sydney collected about 115 mm, or not far shy of June's monthly average. This month is typically the city's wettest month of the year with an average 133 mm.

While most of the rain so far this week has been confined to the coast, more of it will fall over inland NSW in coming days. 

The influence from a complex low pressure system now off the coast will be joined by a cold front moving across Victoria. Rain from that combination will likely fall north of the alpine regions, Mr Cronje said.

That means fresh falls over the ski resorts are likely to be few and far between for the traditional opening weekend of the season.

"There'll be pretty cold mornings, so it should be good for snowmaking," Mr Cronje said, adding a better chance for natural snow will come the following weekend.

The main rain-bearing system has moved north-eastwards and could dump hundreds of millimetres of rain over places such as Kempsey and Yamba.

The bureau's eight-day forecast (see below) shows most of the country is particularly dry - except for north-eastern NSW.

Weatherzone is owned by Fairfax Media, publisher of this website.