Arctic air and the teeth-chattering wind chill
will make it seem like -20C in exposed areas north of the border and -10C on high ground in the north of England.
But it will feel much cooler because of the harsh wind chill
Today is expected to be mostly sunny, with a high near 14, with wind chills
as low as minus 19 and winds of up to 25 mph.
The wind chill
dipped to an even more startling 51 degrees below zero.
"Boston will be just 3 degrees (Farhenheit) this morning, with wind chills
of minus 12 or more," he said.
Sun wind chill
values may be 15 degrees below zero.
He added: "Next week will be between 5 to 8 degrees Celsius but there will be an easterly wind chill
Met office experts say wind chill
will make it feel even colder.
But the Met Office warned that with the wind chill
, it could feel like -6degC.
With the wind chill
taken into account, last night was expected to feel like -70C, and it will feel like -100C by Tuesday.
The agency said wind chill
is expected to fall as low as minus 14 C in other mountainous areas in Gangwon Province.
Jaw-clenching temperatures to start the weekend throughout the Northeast hit Burlington, Vermont, at minus 1 and a wind chill
of minus 30.