Today across the south-west will be cloudy with a 50 per cent chance of showers.
Winds west to south-westerly 20 to 30 km/h.
Warrnambool is expecting a top temperature of 20 degrees, Hamilton 20, Ararat 23, Colac 21, Casterton 20, Mortlake 20, Heywood 20, Portland 18, Port Fairy 19, Camperdown 17 and Terang 18.
A weak cold front in western districts will move over the rest of southern Victoria today.
Another front is expected during Tuesday, introducing a cooler south-westerly airflow across the state.
The next high pressure system will then move rapidly eastwards across the state on Wednesday.
The high moves into the Tasman Sea but extends a ridge back over Victoria on Thursday, while a cold front crosses south of Tasmania
For the rest of the week Warrnambool is expecting a top of 16 degrees on Tuesday, 17 Wednesday, 19 Thursday, Friday 20, Saturday 23, Sunday 23 and next Monday 21.
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.