The UK is bracing for an 'Arctic blast' this week, which will bring a significant drop in temperatures as cold air from the Arctic moves in.

Met Office forecaster Craig Snell has indicated that this week marks the arrival of the first autumn chill, with daytime temperatures expected to hover in the mid-teens.

During this cold snap, London is anticipated to see temperatures around 9°C, while cities like Birmingham, Manchester, and Leeds may experience lows near 5°C.

In northern areas, temperatures could plummet to as low as 1°C by Thursday and Friday, particularly in regions like Cumbria and the Pennines.

Frost is likely to be observed in parts of northern Scotland on Wednesday morning, highlighting the severity of the cold front.

Nighttime temperatures in London are expected to drop to 7°C on Wednesday night and further to 5°C overnight on Thursday.

Weather maps indicate a potential temperature decrease of up to 26°C within a week, with some areas struggling to reach double figures during the day.

The Met Office has issued a yellow weather warning for heavy rain across the UK this weekend, particularly affecting Scottish regions due to a deepening low-pressure system.

Despite the cold weather, improvements are anticipated by the weekend, with potential sunny spells, although temperatures will remain cooler than usual for this time of year.

From Tuesday, colder temperatures will spread southwards across the UK, leading to a prolonged period of cool weather lasting until at least the weekend.

Heavy rain and strong winds are expected to sweep through southeast England, with Scotland and the eastern coast facing gusty conditions.

Looking ahead, warmer temperatures in the low 20s are predicted to return by September 24, providing a brief respite from the chilly conditions.