Drivers in the south west of England are being warned after a 64-mile stretch of the A30 was shut down between Bodmin and Exeter, after snow and ice made driving conditions treacherous, leaving more than 80 people stranded.
Turning more unsettled thereafter with spells of rain and strengthening winds, although with temperatures recovering closer to average.
An amber weather warning for ice will remain in place until around 10am this morning.
Avon and Somerset Police, North and South Wales Police and Humberside were among the forces asking motorists to avoid non-essential road travel.
Cold weather and snow is affecting much of the United Kingdom and daytime temperatures will struggle to get more than a degree above freezing.
M62 eastbound J21-22 is now at a standstill.
More than 70 flights to or from Heathrow Airport on Saturday have been cancelled, mostly on short-haul routes, although British Airways services to NY and Chicago were among those affected. Those travelling by air were advised to check with their airlines before travelling- on Sunday. Download it today and continue to enjoy STV News wherever you are.
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Gatwick airport tweeted on Sunday morning: "Flights are arriving and departing from Gatwick as normal. Only travel if you have to and leave extra time for your journey".
A spokeswoman for the MET Office said: "Ice is likely to form on some untreated roads, pavements and cycle paths".
This increases the risk of accidents, as well as injuries due to falls.
Southern counties of England and parts of South Wales could also see a few centimetres of snow by morning.
A spokesman for BA said, "Poor weather conditions are forecast across parts of the United Kingdom across the weekend, so we have merged a small number of flights travelling to or from Heathrow Airport".
The wind warning is in place until 15:00 on Saturday.