UPDATED THURSDAY 09:42*
A WARNING for heavy rain today (Thursday) has extended by the Met Office, but things should improve for the Isle of Wight Festival.
*The yellow 'be aware' warning will now be valid until 4pm today.
The Met Office said: "Heavy rain arriving in southwest England on Wednesday evening is expected to spread northeastwards during Thursday morning across parts of England and Wales, with locally torrential downpours.
"The public should be aware of the risk of surface water flooding and spray on roads."
The Met Office's chief forecaster said there was uncertainty as to whether the rain band "will be most active over the southwest, or over parts of central southern England."
"Around 15-25mm of rain is expected to fall quite widely in a relatively short period of time, with some locations perhaps receiving more than 40mm."
Vectis 4x4 Response group said the Flood Forecasting Centre had said there is a low risk of surface water and riving flooding in parts of central and southern England on Thursday morning.
*According to the Met Office Heavy rain is forecast for Thursday afternoon easing into the evening with highs of 16C.
Friday will see some light rain with conditions becoming sunnier in the afternoon with highs of 16C.
Saturday is set to be the best day of the weekend — dry with sunny spells and a high of 16C, light rain is forecast from 10pm.
There will be heavy rain through the night into Sunday morning, with the rain easing by lunchtime with sunny spells and a high of 17C. Sunday evening is forecast to be dry according to the Met Office.