SYDNEY has been battered by 42mm of rain today, leading to road closures, flash floods and fishing. And it seems there’s more to come.

The Bureau of Meteorology predicts there is an 80% chance of rain tomorrow and forecasts that showers are at least “possible” right through to the weekend, with a maximum temperature of 27 on Saturday.

The rain was so heavy in Queenscliff on the northern beaches that 12-year-old Zane Levett took the opportunity to fish in the street.

Amazingly, the youngster was lucky enough to land a catch, while others struggle to retrieve their flooded cars.

At the nearby Queenscliff Lagoon, bulldozers have been brought in to release the rising floodwater.

GALLERY: AUSSIES BRAVE THE RAIN ON COLDEST AUSTRALIA DAY

Meanwhile, the banks of the Parramatta River have burst, forcing water on to the surrounding streets near the ferry terminal.

The Bureau of Meteorology is reporting that 42mm of rain has fallen since 9am in Sydney.

media_camera Zane Levett, 12, of Manly, took the chance to try his luck at the flooded cycleway at Queenscliff Lagoon. Picture: Troy Snook

media_camera Zane Levett with his catch. Picture: Troy Snook

media_camera The Parramatta River has burst its banks. Picture: Facebook/ Parramatta Advertiser.

media_camera A bulldozer was required to release rising floodwater at Queenscliff Lagoon. Picture: Troy Snook.

media_camera Brothers Zac and Xander Mrakovic, 15, check out the opening at Queenscliff Lagoon. Picture: Troy Snook.

Conditions also forced a number of problems on the road network

Across the city, a number of road closures are in place and motorists and bus users are advised to leave extra time for their journeys.

The Wakehurst Parkway at Oxford Falls has reopened after being closed in both directions due to flooding for most of the day. But Oxford Falls Rd remains closed.

Flooding has also forced the closure of Rouse Road in Rouse Hill.

Drivers are advised to seek an alternative route while bus route T75 is diverting away from Rouse Rd.

PARRAMATTA RIVER BURSTS ITS BANKS

Flooding is also causing significant delays on Church Street in Ryde, where one of three northbound lanes is closed on the Ryde Bridge.

media_camera A truck on the Wakehurst Parkway before it was closed this morning. Picture: Martin Lange.

media_camera An SUV struggles to get through the water at the corner of Garden st and Powder Works Rd, North Narrabeen. Picture: Martin Lange.

Authorities have advised motorists to drive with caution on Pittwater Road in Dee Why, New South Head Road at Rose Bay and Barrenjoey Road between Careel Head Road and Lodge Place at Palm Beach.

Motorists in the city are also being hampered by faulty traffic lights which are flashing yellow in all direction at a number of major intersections including George and Liverpool Sts and Clarence and Market Sts.

The Bureau of Meteorology earlier issued a severe thunderstorm warning for people in the Hunter, Central Tablelands, Central West Slopes and Plains and parts of the Mid North Coast, North West Slopes and Plains and Upper Western Forecast Districts.

media_camera Pedestrians struggle against the rain and wind in the CBD. Picture: John Grainger

media_camera The wet weather continues in Sydney. Picture: John Grainger

media_camera Heavy rain on Parramatta Road, Haberfield saw three lanes underwater. Picture: Bill Hearne

The storms, which may affect areas including Newcastle, Gosford, Orange, Tamworth, Dubbo and Lightning Ridge, are likely to produce heavy rainfall that may lead to flash flooding, large hailstones and damaging winds.

Yesterday’s Australia Day celebrations were much quieter than usual with rain and wind keeping people indoors.

Temperatures in the city didn’t break 20 degrees yesterday, breaking the previous record of 20.7 in 1965.

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media_camera Chelsea Aihini 22 (L) and Kristy Leon 27 celebrate Australia Day in The Rocks despite the wet weather. Picture: Toby Zerna