Hail hit parts of the south-west just before 7am this morning, with more rain and a high chance of a thunderstorm forecast for the day.
It was five degrees in Warrnambool just before 7am but it felt like -0.3.
A cold front over the south-west will cross the state on Wednesday as a high pressure system develops over Western Australia.
Winds west to southwesterly 20 to 30 km/h will become light in the evening.
Temperatures will reach a top of 13 degrees in Hamilton, Colac, Casterton and Portland; and 12 degrees in Hamilton and Cape Otway.
Have you signed up to The Standard's daily newsletter and breaking news emails? You can register below and make sure you are up to date with everything that's happening in the south-west.