A cold front may be impacting southeastern Australia today, but it's the next system that will bring the significantly cooler conditions. With a forecast top of 17 and 19 degrees for Adelaide and Melbourne respectively on Saturday, there is plenty of room for temperatures to tumble in the coming days.

After today's front clears the southeast early tomorrow morning, a ridge of high pressure will very briefly extend across eastern South Australia and Victoria ahead of the next low-pressure system making its way across the Bight.

The much colder airmass associated with this system will move across South Australia during Monday and over Victoria into Tuesday. Winds will also strengthen over South Australia from Monday morning, before peaking over Victoria on Tuesday, with gusts of 80-95km/h possible over exposed and elevated areas of both states.

With a current forecast of 14 degrees in Adelaide on Monday and Tuesday, and 13 and 14 degrees in Melbourne on Tuesday and Wednesday, it will certainly feel much more winter-like than the comparatively mild conditions of today. Add in the wind chill that those gusty winds will bring, and you've got a recipe for a very cold day, with temperatures possibly feeling more like 11-12 degrees.

Luckily for those who aren't so keen on these chilly days, closer to average temperatures should return a day or two later, with these warmer temperatures looking like lasting into the next week.