A low pressure system is slowly moving across Victoria. There is light rain ahead of the low, then widespread showers once it has moved east of alpine areas on Tuesday. This whole system is too warm for snow.
Snow is on the way though!
A cold front will cross the southeast of the country on Wednesday, introducing a colder airmass and southwesterly winds. The trailing high pressure system should stay back over the Bight, allowing this pattern to persist all the way into the weekend. The snow will be heaviest on Wednesday afternoon with the front, but snow showers will continue, as low as 900 metres over southern Victoria (generally falling to 1200 to 1400 metres elsewhere). We can expect 5 to 10 cm of snow, locally up to 20 cm, from Wednesday to Saturday (mainly Wednesday into Thursday).
There may be one final surge that comes up from the south later in the weekend, bringing one to two more days of snow, before the high moves in.
Commentary above courtesy of Jane's Weather. www.janesweather.com