This weekend, southeastern Australia will predict rainfall, hail and even snow in some parts of the country.

Miriam Bradbury, a senior meteorologist at the bureau, said in New South Wales, wet and windy conditions could see a "real hard end".

She said heavy rain and strong gusts of wind "double whip" will be concentrated on the state's south coast, then transferred to the central coast on Monday and Tuesday, causing dangerous driving and dangerous surfing conditions.

Sydney's highest temperature is expected to reach 21 degrees Celsius at 18°C ​​on Saturday and Sunday, with a 18C possibility of thunderstorms near the coast on Sunday.

In Melbourne, 14C is the highest forecast for Saturday, with waves of waves. Sunday will come with 15 patches of morning frost.

Starting Sunday, wind gusts of 70 to 90 km/h on the South Coast of New South Wales are expected to rise, crossing the Central Coast on Monday, possibly extending to Tuesday.

Bradbury said the Hunter and Central Coast will be the wettest, with two-day rainfall forecasts exceeding 150mm.

In Victoria and Tasmania, the southeastern cold front will bring a "cold explosion" that may see the highest temperatures as a teenager. "It's going to be a very, very cold weekend," she said.

By far, many places in these states have experienced their coldest day of the year. Some people may even see hail or snow.

"Temperatures overnight will also drop, especially starting Sunday," Bradbury said. "Night conditions will be below 5C in most areas, with temperatures expected to be below zero in Tasmania, Victoria and parts of South Australia."

Hobart is expected to reach 11C on Saturday and 13C on Sunday.

There is snowfall at 500 meters in Tasmania and 1,000 meters in Victoria. "We can see a few loud shouts about the Grambie people," Bradbury said.

In South Australia, she said, it was in record-breaking grip in dry, shower activities that could be limited to the coast and “on the lower side” – less than 10 to 15 mm expected.

“Unfortunately, for those very, very dry areas, especially the east and southeast, we didn’t see any heavy rain in the next seven days,” she said.

With much-needed rainfall, the state has been sticking with strong westerly winds to break the toxic algae blooms and has been hovering on the state's coastline since March.

Bradbury said the best wind energy for SA was Saturday, when cooler, southerly winds were in the southern and coastal areas.

Adelaide will see the highest temperature of 17 degrees Celsius over the weekend, and the showers are cleared on Saturday, mostly sunny.

Meanwhile, southeast Queensland will see showers and thunderstorms on Saturday and clear them by the afternoon. Brisbane is expected to rank 26 degrees Celsius on Saturday with a high chance of showers, and is expected to relax at the top of 26 degrees Celsius on Sunday.

Bradbury said in Western Australia, settlement and unusually warm conditions continue to exist.

“Western Australia, especially the Southwest Land sector, is 2 to 5C higher than the average throughout the weekend early next week,” she said.

“For Perth, that means we will be around the mid-20s to the 20s next Tuesday. Perth is expected to be mostly sunny, with 26C on Saturday and 27C on Sunday.

Darwin has the highest sunshine and 32 degrees Celsius. According to BOM, Canberra will reach 18C on Saturday and 13C on Sunday.