Britons have been warned to "bring out their umbrellas" with the UK is set to be soaked by showers all week.
Tuesday will be the mildest day of the week before wet and windy weather sweeps the UK through into the weekend.
Met Office meteorologist Emma Salter said: "It won't be as cold as it has been. We have had the coldest September night on record in Northern Ireland and the coldest in 20 years in Scotland. The wind and rain will keep temperatures from falling."
Ms Salter said the weather will be "generally fine and dry" on Tuesday, except in parts of the south of England where it will be "drizzly".
This will then change as the weather will become more "unsettled".
"There will be wet and windy weather in many places", the forecaster said.
She added: "It s not really that unseasonable, we are moving into something a bit more classic for the season, more of an autumnal feel."
That said, Ms Salter did warn Britons to dress appropriately for the change in weather.
"Bring out your umbrellas and your winter coats", she said.