It will be a wet start to the week for Victoria, with further rain adding to the flooding threat that has gripped the state's west.
Bureau of Meteorology senior forecaster Rod Dickson said a band of rain would hit southern Victoria on Monday, followed by more rain over central and western parts of the state on Tuesday and Wednesday.
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Heavy rain forecast across Victoria
There is little relief in sight for residents affected by flooding in Victoria's south-west. (Video courtesy ABC News 24)
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The weather bureau warned that further showers would likely cause renewed stream rises, with catchments already soaked from the wet weather.
"We're at the end of a pretty wet winter and the rain just keeps on coming," he said.
"Any rain we get is just going to add to the stream rises this week."
The potential for more flood watches across the state comes after a weekend of flooding in the state's west.
In Casterton, near the South Australian border, residents had to flee households and the driver of a milk tanker had to be rescued from rising floodwaters after the Glenelg River burst its banks.
![Pole sitting as the Glenelg River broke its banks and caused flooding around Casterton.](/web/20160913022220im_/http://www.theage.com.au/content/dam/images/g/r/d/x/n/t/image.related.articleLeadwide.620x349.grdwue.png/1473639114602.jpg)
The river reached major flood levels about 4.30am on Saturday night, rising almost half a metre within 10 hours to 6.1 metres.
Up to 700 horses had been expected in the town for Casterton Races, but the jumps meeting had to be cancelled due to the big wet.
![Glenelg Inn publican Troy Robbins and his children Marlee and Nate sit on sandbags outside the hotel at Casterton.](/web/20160913022220im_/http://www.theage.com.au/content/dam/images/g/r/d/j/z/8/image.related.articleLeadwide.620x349.grdwue.png/1473634101981.jpg)
Further north, the township of Harrow had been bracing for flooding of its own, but the water level peaked just after midday on Sunday and continued to drop throughout the day, saving the township from flood damage.
State Emergency Service spokesman Bruce Farquharson said the Harrow Mechanics Institute Hall was affected, but there were few other buildings in town.
![Nigretta Falls near Hamilton in west Victoria after the heavy rains.](/web/20160913022220im_/http://www.theage.com.au/content/dam/images/g/r/d/x/n/u/image.related.articleLeadwide.620x349.grdwue.png/1473639115652.jpg)
The water level in Casterton had barely dropped since its overnight peak, resting at 5.8 metres at 4pm on Sunday.
Ten homes were expected to be inundated and a further 40 to 50 were surrounded by water.
![Portland-Casterton Road, Sandford, is flooded.](/web/20160913022220im_/http://www.theage.com.au/content/dam/images/g/r/d/m/3/6/image.related.articleLeadwide.620x349.grdwue.png/1473634101981.jpg)
"It's been hanging on pretty well," Mr Farquharson said.
With more rain forecast, the river is likely to remain around six metres into Monday.
![Hamilton and Warrnambool SES volunteers at the sandbag collection point next to the rising Glenelg River at Casterton.](/web/20160913022220im_/http://www.theage.com.au/content/dam/images/g/r/d/j/z/2/image.related.articleLeadwide.620x349.grdwue.png/1473639115841.jpg)
But an incident control centre spokesman in Hamilton said the amount of rain was not expected to make the flooding much worse.
"We'll keep a watch on it overnight," he said.
Weatherzone: View the full weather satelliteHe urged motorists not to drive through floodwaters or ignore road-closure signs.
"They are putting themselves at risk and emergency services at risk if something went wrong," he said.
Casterton Racing Club manager John Donnelly said between 600 and 700 horses were expected at the jumps track on Sunday for the club's annual spring meet. The event was cancelled.
Mr Donnelly said the track's turf was unaffected, but the club's two access roads were blocked.
"This has happened before, in 1991, so if it only happens every 25 years I don't think we'll complain too much about it," he said, despite the event bringing an economic boost to the small town.
Mr Farquharson said two residents of a house in Racecourse Road had to be relocated about 1.30am.
"They took a cautious approach and got out," he said. "They're in alternative accommodation now and are safe and sound."
Frank and Rita McInerney said they packed-up and left in the middle of the night after water began lapping around their house.
"It was really freely flowing, probably a foot or so high," he said.
Sandbags managed to keep the water from seeping inside, but the couple lost one of their chooks to the floodwater on Friday night.
Another house with a single occupant in McKinlay Street was evacuated later on Sunday morning.
"We expect the water will take about 24 hours to recede to the point where houses are able to be accessed for inspection," Mr Farquharson said.
He said about 45 Casterton residents attended a community meeting held on Saturday afternoon.
"The Casterton community knowns floods, they've had many floods over the years," Mr Farquharson said.
Troy Robbins, publican of the town's Glenelg Inn, said floodwaters came within metres of the hotel.
"It peaked here about 3.45am out the front of the pub, so we didn't have any water inside," he said.
Meanwhile, SES Dartmoor members came to the aid of a milk tanker that had become trapped in quickly rising water early on Sunday.
SES Dartmoor controller Dallas Oakley said the driver had to be rescued by boat about 1am.
"He decided to drive through floodwater and got stuck," he said.
It took about half an hour to rescue the tanker just outside Casterton.
The Bureau of Meteorology issued a major flood warning for the Glenelg River on Saturday night.
The SES advised Casterton residents not to walk, ride or drive through the floodwater.
People are also advised to keep children away from floodwater and to stay well clear of waterways, stormwater drains and fallen power lines.
The Glenelg River last flooded Casterton in 1996.
Residents in the nearby town of Coleraine were evacuated on Friday night, with tiger snakes seen swimming through the streets to escape the rising water.
Premier Daniel Andrews said on Sunday grants had been provided to five families.
Elsewhere in the state, a moderate flood warning has been issued for the Murray River at Corowa and a minor flood warning for the Murray River at Albury.