Forecasters said that up to 5cm of snow could fall between 2pm and 9pm.
This morning the Met Office upgraded a yellow weather alert for ice to an amber alert for snow and ice. 8cm in Spadeadam, Cumbria, and 7cm in Tulloch Bridge, Inverness-shire as temperatures plummeted.
Cornwall Airport, which is near Newquay, was forced to temporarily close on Thursday because of the snow, and around 100 cars got stuck on a nearby stretch of the A30 by Temple.
Vehicles could be seen skidding and sliding as the roads were completely covered due to the "whiteout".More news: Alibaba Runs It Back With Solid Q3 Results
The Met Office has issued an amber "danger to life" warning for parts of the United Kingdom as icy roads and heavy snow up to 10cm deep is expected to settle a day after the cold snap led to disruption for airports and schools.
The Met Office said rain and snow were expected to move into the United Kingdom from the southwest from Thursday and through Friday with icy patches forming, but that snow amounts would "vary markedly" across England and Wales.
The wintry showers should steadily ease off as the day goes on and brighter spells are expected in northern and western areas. "Ice is likely in many parts overnight".
The extreme temperatures has seen the River Dee in Aberdeenshire freeze over.More news: Cavani at the double as PSG ease past Rennes
After Tuesday night's smattering of snow, another weather warning remains in place for snow and ice across the region from 1pm today until 9pm on Friday. The highest snowfall accumulations are likely to be in areas above 150 metres.
Early morning commuters can expect to be waking up to freezing temperatures and rail disruption during rush hour.
There could also be power cuts as a result of the icy weather and there are already cancellations on Eurostar at St Pancras International and at Ebbsfleet International and Ashford International due to adverse weather conditions in France and Belgium.
Meanwhile hundreds of schools are expected to be closed.More news: Apple might launch new iPads and iPod Touch soon