The Environment Agency has warned this afternoon that water levels remain high along the River Thames despite little rain over the past few days.
Rainfall is expected over the weekend but the agency said it is unlikely to result in any more flood alerts.
Flows that have caused flooding in South Gloucestershire, Oxfordshire and West Berkshire may move downstream towards London over the weekend.
The agency has urged the community living near the River Thames from Cookham to Teddington to keep a regular check on river levels and be prepared to act as the risk of flooding is still real.
Boaters are advised not to go out on the river.
Matt Carter, Environment Agency Waterway Operations Manager, said: "Anyone living near a river must stay vigilant over the weekend, as river levels, and the risk of flooding, will remain high in many areas over the weekend."
In Shiplake, where four properties were flooded yesterday, levels are high but stable.
A flood warning was issued for Marlow and Bourne End last night.
They are now stable but will remain high for at least the next 24 hours. One property in Marlow has been flooded.
There are also flood warnings in Datchet and Old Windsor. Levels here are expected to remain high for several days.
From Windsor through to Sunbury, maximum levels are expected today and are likely to be significantly lower than in January 2003 when 128 properties were flooded around Staines and Wraysbury.
A support team has been stationed behind Wraysbury Village Hall on the green as a focal point for residents to receive information.
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