The Met Office has issued a severe weather warning for ice as temperatures are expected to drop to 0°C overnight.
The Exeter-based weather agency said there is the possibility of small amounts of snow falling this evening, particularly on higher ground.
A spokesman from the Met Office said: “Showers of rain, sleet and snow will continue overnight.
“Clear skies between showers are expected to allow temperatures to fall to around freezing resulting in a risk of icy stretches forming on untreated surfaces.
“The public should be aware of the potential for some disruption to travel.”
The yellow “be aware” weather warning has been issued from 6pm this evening until 10am tomorrow morning.