Bureau of Meteorology data shows Horsham received 11.8mm to 9am Thursday, Nhill 9.6mm, Hopetoun 8mm, Ararat 11.8mm, and Stawell 7.2mm.
Edenhope caught 5.4mm, after it received 10.2mm the day before - its highest rainfall for the month.
IT'S an unusually cold and also wet end to April across the region.
Bureau of Meteorology duty forecaster Michael Halfpenny said about 2 to 5 millimetres had fallen across the Wimmera overnight.
He said the wet weather would continue on Wednesday, with about 10-15mm forecast for throughout the day.
"There will be showers over the next few days, but no significant quality," he said.
It follows heavy rain at the weekend.
Mr Halfpenny said between 20 and 40mm fell across the wheat belt at the weekend.
"Most farmers should be pretty pleased with the rain," he said.
"It's come at the perfect time."
Horsham measured 19.8mm on Sunday, while Nhill received 27.4mm, Hopetoun 25.8mm, Ararat 13.4mm, Stawell 10.6mm and Edenhope 7.6mm.
By noon on Wednesday, 8.4mm had fallen on Nhill and 5.6mm on Horsham since 9am.
Mr Halfpenny said with the rain came cold weather.
He said temperatures would hit just 13 degrees in Horsham on Thursday, and 14 on Friday.
He said Stawell was set for 12 degrees on Thursday and a cool 11 degrees on Friday.
Mr Halfpenny said it was early in the year for temperatures to drop so much.
"It's unusual for April but not for May," he said. "It's on the cusp."
Mr Halfpenny said temperatures across the region would increase marginally at the weekend, but remain at a maximum of 17 degrees on Monday and Tuesday next week.
Horsham, Nhill and Warracknabeal are all forecast to reach a maximum of 16 degrees on Wednesday. Stawell, Ararat and Edenhope are set for a top of 15 degrees.
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