Today across the south-west will be cloudy with top temperatures about 20 degrees..
There's a slight (20 per cent) chance of a light shower, mostly during the morning.
Light winds will become south to south-easterly 15 to 20 km/h in the early afternoon then becoming light in the evening.
At 7am in Warrnambool it was 10.4 degrees and felt like 9.8.
The city is expecting a top of 18 degrees today, Hamilton 19, Colac 129, Ararat 20, Casterton 20, Mortlake 19, Heywood 18, Portland 18, Port Fairy 18, Terang 18 and Camperdown 17.
A large high pressure system south of Adelaide will move slowly east and will extend a ridge across southern Victoria today.
A trough will extend from NSW into north-east Victoria on Wednesday as a weak cold front moves across Tasmania.
The high centre will gradually move to the east of Tasmania late Thursday and further east over the Tasman Sea on Friday.
For the week ahead - Wednesday will be partly cloudy 17, Thursday partly cloudy 18, Friday mostly cloudy 23, Saturday mostly sunny 27, Sunday scattered showers 21, Monday partly cloudy 19 and Tuesday partly cloudy 20.
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