Exact hour UK will be coldest this week with -10C temperatures and 15 inches of snow

The exact hour the UK will be coldest this week - amid the prospect of teeth-chattering -10C lows at times - has been predicted. Maps and charts show temperatures dropping to between -6C and -10C at times in Scotland, as north of the border takes the brunt of the white stuff.

In London and the south of England, temperatures could drop to -2C, while it could feel a lot colder further north, with -4C conditions anticipated, as projected by WX Charts, which has used Met Desk data to model this week's weather amid 48-hour weather warnings from the Met Office.

Yellow weather alerts from the Met Office take hold on Sunday, spanning through to Tuesday. On Tuesday, November 19, in England, the final day of the Met Office alet, temperatures will average six degrees throughout the day before falling to three degrees at around 9pm, with a "feels like" temperature of -1C.

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The following day, November 20, it'll be slightly colder during the day with a 'feels like' temperature of -2C at 9am, but it will not fall below zero degrees thereafter. Thursday, November 21, and Friday, November 22, look set to be fairly similar.

Netweather TV's Ian Simpson said: "There is currently still some uncertainty around the track of a frontal system moving across England and Wales on Monday. Some model runs have the majority of the rain over northern England and southern Scotland, where it would be pushing into cold air that is forecast to spread into these regions on Sunday.

"This has potential to produce snow on the northern flank, particularly on high ground but also potentially at low levels away from the east coast. Areas near North Sea coasts will probably see rain from the system due to onshore winds off the comparatively warm sea."

He said: "During Tuesday evening, a trough is forecast to bring showers a fair way inland over east Yorkshire and Lincolnshire and into the north and east of East Anglia, perhaps also heading into the eastern Home Counties for a time."

"Between Wednesday and Friday, the winds are forecast to switch to a north-westerly direction for most of us. Northern Scotland will continue to see frequent showery activity. For most of the time the showers in northern Scotland will be of snow and hail," he added.