More heavy showers are expected for the Eastern Yar tonight and into tomorrow, which means a flood alert remains in place.
Water levels are especially high at Alverstone and there will be increasing water in land and fields nearest the river, says the Environment Agency.
Levels will peak at around midday on Friday.
Further rainfall is forecast on Saturday, which will keep river levels high. Minor flooding to roads in Sandown (Golf Links and Moreton Common Road) will persist, says the alert.