Kai Nash left from Sydney and Alicia McCracken of the Sunshine Coast take in the cold weather at Echo Point in Katoomba.

Southeast Australia is about to be bitten hard by another cold front, bringing freezing winds, rain and snow.

A front will enter South Australia tonight before making its way across Victoria, Tasmania and southern parts of New South Wales tomorrow.

The short reprieve we enjoyed across the weekend is not set to last with the front set to send the mercury plunging all over again.

Victoria and Tasmania are set to receive the worst of the front with South Australia and NSW residents also set to shiver through another cold couple of days.

The BoM Victoria has issued a severe weather warning for potentially damaging winds across elevated regions tonight and tomorrow.

On the upside for snow bunnies while it will be freezing everywhere, the Alpine areas are set to receive some fresh falls, with up to 30cm forecast.

Black Mountain railway station coated in snow. Picture: Facebook/Northern NSW Severe WeatherSource:Facebook

There could also be snow falls as low as 800m.

BoM senior forecaster Simon Allen told news.com.au the cold front will start to be felt as it makes its way across South Australia.

“This will mostly affect the southeastern states,” he said.

There could also be snow as low as 800m.

“It’s a relatively strong front which will bring widespread showers across southern parts of South Australia, Victoria, the southern inland of NSW as well as Tasmania.”

He said Melbourne and Hobart would struggle to hit highs of 12-13C tomorrow and Friday, and said while the front will be a strong one, it won’t be as strong as the one which hit late last week.

“The worst effects will certainly be felt Thursday and overnight as well as Friday morning,” he said.

By the weekend Melbourne can look forward to slightly warmer temperatures of 14C.

While Sydney won’t be quite as cold, it is definitely no time to put away the heaters just yet.

As of 11.50am today it hit 12.7C, but according to the BoM the temperature felt more “like 8.5C”.

Tomorrow won’t be much warmer with a top of just 17C but a low of 8C.

Here it comes: Another cold front is on the way, rug up. Picture: Bureau of MeteorologySource:Supplied

Sydney shivered through its coldest day in 20 years with a high of just 11.7C on Monday.

And there’s more to come, with minimum temperatures across the state up to 8C below average for this time of year.

In Melbourne the temperature reached 14.3C at midday while Adelaide recorded a top of 11.8C as the cold front moved in.

Further south in Tasmania the temperature won’t reach above 14C with overnight lows of just 8C.

WHAT’S A COLD FRONT ANYWAY?

According to the BoM, fronts like the ones we have been getting are not unusual for this time of year, particularly in southern parts of the country.

Common features of a front include abrupt changes in temperature, wind speed and direction, and rainfall.

“A cold front is the leading edge of a relatively cold air mass moving into a region of warmer air,” a blog on the BoM website explains.

It also warns while the biggest change in temperature occurs while it’s passing, more often than not the coldest air may move over an area many hours after.