Brits will be lashed by torrential downpours and ferocious winds on Monday with up to four inches of rain set to fall amid 60mph winds.
A raging storm will strike much of the country from today and is set to continue throughout much of the rest of October.
The Met Office has predicted that rain throughout the day will batter much of the nation while temperatures will remain cool, barely moving into the low teens for many areas.
England could see as much as four inches of rain and ferocious gale force winds with warnings that flooding could be a possibility.
The Environment Agency said that over the coming days local flooding was 'possible but not expected from rivers and surface water in parts of England and Wales on Tuesday until Thursday.'
The organisation added: "Local flooding is also possible but not expected from coastal/tidal conditions.
"This is a risk along parts of the coastlines of Wales and south and west England on Wednesday and Thursday, and for parts of the east coast of England on Thursday only.
"Land, roads and some properties may flood and there may be travel disruption."
The Met Office has forecast that the downpour will start in the west before spreading over the country towards the east, warning it could be 'heavy in places.'
Heavier rain will then strike the south coast before returning again to the west, say forecasters.
It comes after Jim Dale, at British Weather Services, said the settled conditions that have been seen in the UK recently are set to be replaced by a "very turbulent" few weeks.
He told the Sun : "It will turn colder later in the week and there could be a risk of snow which if it comes, will fall over the hills of Scotland.
"The stormy pattern is expected to hold out until end of the month with a very wet, windy, and possibly stormy, Halloween on the cards."
"It is time to get ready for a big change in the weather with a real witches brew in the run up to Halloween," he added.
UK Weather Forecast
Some early fog in southeastern areas of England, then brighter for a time. Elsewhere mostly cloudy. Rain in the west spreading east, perhaps heavy in places. Brighter across parts of Northern Ireland later. Mild everywhere, warm in any brighter spells.
Rain easing but still patchy drizzle. Heavier rain may skirt the south coast and returns to the west later. Hill fog affecting some areas. Very mild but rather breezy.
Some southeastern areas of England mainly dry, with some bright and warm spells. Many other areas cloudy with areas of rain, some heavy, moving northeast. Breezy and very mild.Read More Read More