Parts of the UK have been warned to brace for fresh outbreaks of flooding.
Meanwhile, families forced to flee their inundated homes after a month's rain fell in 24 hours across the north of England are now beginning clean-up operations.
The Environment Agency said the South West is at low risk of flooding, caused by expected heavy rain overnight. But northern counties and Scotland, where 11,000 homes and businesses are being protected by flood defences, should not face any more significant floods.
Up to 500 homes and businesses were evacuated in North West England
The deluge battered revellers at the Isle of Wight Festival and brought havoc to Cumbria which buckled under the worst of the wet weather.
Overnight, as much as 100mm of rain fell on the North West region, while unusually heavy rain fell on south-west Scotland, Northern Ireland and Lancashire.
Soggy: Isle of Wight festival revellers put on a brave face during the horrendous conditions
Severe flooding also hit areas of West Yorkshire overnight into Saturday, especially in the Calderdale area. The centres of the towns of Hebden Bridge and Mytholmroyd were inundated and Todmorden was also badly affected, firefighters said. Overnight, the River Calder at Hebden Bridge measured a record 3.2 metres.
An Environment agency spokesman said: "There is a low risk of some localised flooding on Sunday across parts of south-west England due to heavy rain, so we urge people to remain vigilant. Further showers are expected across northern England, however further significant flooding is not expected here."
The River Yarrow burst its banks in Croston, Lancashire, flooding around 70 homes which had to be evacuated. Jon Lilley, 32, landlord of the local Wheatsheaf pub, is currently trying to pump water out of his cellar and clean up the rest of the pub.
"The water just kept coming closer and closer," he said. "We tried to wedge the doors as best we could but we lost the battle at about 2am and it came through the sandbags."
The Met Office has now issued "yellow" severe weather warnings for the North West, Yorkshire and Humber, the South West, Northern Ireland, Strathclyde, south-west and central Scotland, the Lothians, the Scottish Borders, Tayside and Fife, the Highlands & Islands and Grampian.
Brendan Jones, forecaster at MeteoGroup, the weather division of the Press Association, said that while many places have seen rain, it was nowhere near the amount of previous days.
South-west and northern England and Scotland are likely to see more rain overnight, with as much as 15mm-20mm in some areas.