Most of Australia gets a long weekend this week courtesy of a centuries-old British tradition.

The King’s Birthday public holiday will be celebrated on Monday, June 9, in New South Wales, Victoria, South Australia, Tasmania, the Australian Capital Territory and the Northern Territory.

Queensland and Western Australia mark the occasion later in the year.

The King’s Birthday will be celebrated around most of the country on Monday. (Getty)

But rainy and windy conditions will dampen celebrations in south-eastern states.

Temperatures will fall to the negatives in Canberra, the lowest in the country, and hover around the low teens in Melbourne and Adelaide.

Here’s what the weather will be like around the country this weekend.

Sydney will stay mostly mild and cloudy through the weekend, with tops of 19 on tomorrow, 17 on Sunday, and 16 on Monday.

It could get as cold as eight degrees on the public holiday.

There is a slight chance of showers throughout all three days.

What will the weather be like? (Getty)

It’s unsurprisingly a bit chillier in Melbourne, falling to as low as six degrees on Monday.

Top temperatures will be 15 tomorrow, 12 on Sunday and 13 on Monday.

It’s likely to be raining throughout the weekend, with up to 9mm forecast tomorrow before lighter showers on Sunday and Monday.

Adelaide is facing a similar weekend to Melbourne.

Temperatures will top out at 17 degrees tomorrow, before dipping to 13 on Sunday, and 16 on Monday.

And it will be another rainy three days, again with the heaviest falls of up to 25mm expected tomorrow.

Most of Australia’s capitals are looking at a cloudy, wet weekend. (Getty)

Hobart will see three days with tops of 15 degrees, but the Bureau of Meteorology is forecasting lows of eight degrees tomorrow, four on Sunday, and eight on Monday.

Like much of the south-east, Tasmania is bracing for a rainy weekend, with Hobart expecting falls of up to 20mm on Monday.

Australian Capital Territory

Canberra could drop to freezing on Monday, with the Bureau of Meteorology forecast to reach as low as negative one degrees.

Tops of 11 tomorrow are as warm as gets, falling to 10 degrees for Sunday and just 9 for Monday.

Light showers are expected throughout the weekend.

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Darwin is where you want to be if you’re craving a warmer long weekend.

Temperatures will top out at 31 tomorrow and on Sunday, 30 on Monday, and only reach a bottom of 20.

The days will also be mostly sunny, with some clouds on Monday.

Despite not getting the public holiday on Monday, Brisbane is looking forward to some decent weekend weather.

Conditions will range from sunny to partly cloudy, with temperatures reaching 25 degrees tomorrow, and 23 on Sunday and Monday.

The other non-holidaying capital, Perth, is also looking at sunny days from tomorrow into Monday.

Temperatures will top out at 20 tomorrow and 21 on Sunday and Monday.

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