The Met Office has issued yellow weather warning for ice and snow for Cornwall for today and tomorrow.
The Met Office say Ice and snow showers may lead to some difficult travel conditions during Thursday morning.
Occasional showers, falling as sleet and snow, are likely at times overnight and into Thursday morning.
These will fall onto sub-zero surfaces, leading to icy stretches on untreated surfaces. Patchy small amounts of snow accumulating, but possibly 2-5 cm above 150 m in West and North Wales.
A Met Office spokeswoman said the low temperatures are also due to how long the cold snap has lasted.
She said: “It’s due to the prolonged nature of this cold spell, it will have been lasting for quite a few days.
“A build up of snow, as well, just allows for the temperatures to get colder and colder and we don’t often see a cold spell last three to five days.
“The air is coming directly from the Arctic, so it is exceptionally cold air.
“It’s staying cold until Friday, and then looking further ahead into the weekend we’ve got some deep areas of low pressure pushing in, so a big change in weather type, and we could see some stormy conditions by the end of the week.
“The cold isn’t lasting right to end of the week, but we have a very different type of potentially-disruptive weather arriving.”
The weather is forecast to turn stormy on Sunday with another yellow weather warning for wind, she added. A period of strong winds may bring disruption to travel and utilities across parts of the UK including Cornwall.
A period of strong winds and persistent rainfall is expected across parts of the UK during Sunday.
Whilst there is still some uncertainty as to the exact locations which will see the strongest winds, northern and western areas are likely to be most at risk.
Many inland areas are expected to see gusts of 50 - 60 mph during this period. Coasts and exposed locations could see gusts of 60 - 70 mph or even higher.
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