There is a new weather warning in effect for Thursday night and Friday morning that calls for further heavy rain and possible floods in London.
Much of England and Wales is under a yellow warning, according to the Met Office, and parts of London are also predicted to be hit hard by the rain between 5 p.m. on Thursday and 10 a.m. on Friday.
It is likely the weather conditions will again cause travel disruption while there is “small chance” of properties experiencing power cuts and becoming flooded.
Some locations are expected to see as much as 40-60 mm of rainfall in a period of four to six hours.
This is in addition to another yellow warning previously issued for Thursday and which was forecast to see the north-east of England pelted by heavy rain.
Forecasters say the Pennines and North York Moors could have between 80-100mm of rain.
The warnings come as heavy rainfall left parts of London submerged this week - causing widespread travel disruption on Monday, and damage to properties as parts of the UK saw more than the monthly average rainfall in 24 hours.
The extreme weather saw part of the District Line and London Overground suspended all day, while the Metropolitan and Piccadilly Lines were also part-suspended on Monday afternoon.
Mainline trains were also hit due to a combination of flooding on the tracks and train shortages.
Outside the capital, areas of Bedfordshire were affected by the conditions alongside Northamptonshire, where flooding has forced the evacuation of 43 people from a holiday park.
On Tuesday, firefighters and police worked to evacuate residents until late at night at Billing Aquadrome holiday park, Northamptonshire Fire and Rescue Service said, with only a "very limited" number of people remaining at the site.
Areas including Buckinghamshire, Northamptonshire and Warwickshire were among the worst hit on Monday, the Met Office said.