In addition, Sunday could even bring hail and thunder as showers are set to continue. The BBC’s Ben Rich warned the weekend’s weather “may have an impact” on people’s plans.
He said Britons should be prepared for short bursts of “really intense” rainfall and heavy winds associated with a band of bad weather heading north-east.
Early Saturday morning will see the UK positioned between two separate weather systems, meaning clear skies and cold temperatures.
Met Office meteorologist Luke Miall added: “As the cloud and rain pushes in from the west and these winds whip up – we’ll see gales around western coasts – it does mean those temperatures will start to rise.”
However, Met Office maps show northern areas and Scotland in particular are set to be colder – between 10 and 13 degrees.
While the south-east is set to remain dry during the day, the Met Office warned of a band of rain there throughout the evening.
For Sunday, the Met Office warned: “A mix of sunny intervals and showers, some of these heavy with possible hail or thunder.
“Showers fewest in some eastern areas. Windy especially in the northwest. Less mild.”
Early Sunday morning should bring temperatures in the low double figures around southern parts of England, and around 8 degrees in Scotland.
Western areas are likely to be the most showery during Sunday afternoon, while some eastern regions may see some sunshine from the north to the south.
Mr Miall said the weather this weekend would be “fairly typical autumn” but “unsettled” nonetheless.
The unsettled skies will continue on into next week as well, with Monday likely to be breezy and showery with some sunshine, according to the BBC.
It is likely this will continue through Tuesday and Wednesday as well, perhaps with longer periods of rain.
Coinciding with the rain, clocks are also due to go back an hour at 2am on Sunday morning.
This marks the end of British Summer Time, and the UK will begin observing Greenwich Mean Time instead.