Parts of the nation will be lashed by heavy downpours and gale force winds on Wednesday while many will bask in soaring temperatures of 23C.
Much of Scotland and Northern Ireland will be hit by heavy rain and strong winds, forecasters predict, as a storm batters part of the UK today.
But for most of England and Wales there will be sunny skies and high temperatures above 20C for many regions.
Met Office forecaster Clare Nasir said: "It will be a wet and windy start to Wednesday with some high rainfall totals through the morning.
"For much of England and Wales it could be a bit of a misty start with some fog patches and certainly to the north west a bit more cloud here."
She added: "Gales and heavy rain for the north and west of Scotland to start Wednesday.
"Elsewhere, some fog patches particularly in the south but also some sunshine."
She went on to say that as the day went on most of England and Wales would see some brighter sunshine but Scotland and Northern Ireland would see rain and strong winds.
Forecasters predict that temperatures could reach up to 23C in some southern areas.
Image:Adam Gerrard / Daily Mirror)
Longer ranger forecasts predict that the mercury will stay warm in many areas up to the weekend, with 23C predicted again in the coming days.
Speaking to the Express, forecaster Jim Dale, from the British Weather Services, said that climate change has led to the UK’s summer often being extended into the first three weeks of September.
Whereas in past decades the month would usher in autumn, it is not now unusual to see bright, dry and sunny weather well into the month, he explained.
He said: “What we’re in for is an extended summary month for the first three weeks of September because of climate change.
“What we are going into now is pretty weather, it’s very pleasing but it’s not probably a lot more than that.”
Mr Dale said that the warm weather is unlikely to last past Sunday as the jet stream gradually moves south.
This warm air will be steadily replaced with colder and wetter weather as September’s end nears, he said.
UK Weather Forecast
Rain and strong winds in the northwest gradually moving southwards whilst weakening. Becoming clearer in the far north with a few showers. England and Wales mostly dry with good sunny spells. Rather warm in the east and south in sunshine.
Weakening area of rain moving south across north England and Wales. Dry with clear spells to the south. Further rain and strong winds arriving in the north.
Some rain in western areas, particularly northwest Scotland, south Wales and southwest England. Mostly dry eastern areas with sunny spells. Rather warm in the southeast.
Outlook for Friday to Sunday:
Patchy rain at times for northern and western areas Friday. Elsewhere, staying mainly fine and warm throughout, though some rain or showers in places Saturday and Sunday, locally heavy/thundery.Read More Read More