Double-check the heating and brace yourselves for a sudden soggy cold snap tomorrow as temperatures are expected to drop below zero with some parts seeing torrential rain.
Most parts of the country including the South-east, Wales and the Midlands will see lows between -1 to 1C during Sunday night and early Monday morning.
After an unseasonably mild autumn, it is likely that - despite the slight dip in temperature and suggestions of jet streams bringing over prolonged freezing weather from North America and Russia - winter will actually be milder and wetter than average.
A severe weather warning issued by the Met Office states that those in the southeast of England, such as Greater London, Kent, Cambridgeshire and Norfolk should expect heavy rainfall and potential risks of flooding for most of tomorrow.
Rain will be persistent and locally heavy through much of Sunday, with more than 20mm expected in places. Residents of areas susceptible to flooding due to poor drainage are advised to keep sandbags and waterproof sheeting on hand.
