Parts of Britain will be deluged by almost a month's rainfall on Friday, as the abysmal summer weather shows no sign of letting up.

Met Office forecasters have warned that a storm rolling in from the Atlantic will soak South West England, Wales, the West Midlands, London and parts of the South East with more than 1.9in (50mm) of rain.

A spokesman said: "There will be no respite from the miserable summer weather just yet."

Heavy rain and gusting winds are expected, with forecasters predicting that some areas will suffer localised flooding.

South-west England and Wales will bear the brunt of the Friday storms with 50mph winds expected.

The latest instalment of awful weather follows one of the darkest, wettest Augusts on record.

The dank conditions will roll in from the Atlantic on Thursday, with rain expected for most of the UK.

Conditions will then worsen on Friday before petering out over the remainder of the weekend.

A spokesman for the weather centre MeteoGroup said: "A deep depression is moving in from the South West on Friday.

"Much of the UK will experience rain with the South West and Wales being the worst hit.

"By the end of Friday there will be some localised flooding in places.

"The whole of Wales will get pretty heavy rain. The weather we are going to see would be fairly typical of autumn conditions."

The depression will move across the UK tomorrow with 5-10mm (0.1-0.3in) of rain expected to fall across central and north-west England.

Scotland and the Northern Isles will avoid the worst of the weekend's weather, the area will stay dry and even experience some sunshine.

The average rainfall for September is 70-80mm .