Temperatures to plummet to minus 7C in parts of UK as cold health alerts issued

A dog walker crossing a frosty field in Devizes in Wiltshire. (Ben Birchall/PA) - (PA Wire)

Temperatures are set to plummet as low as minus 7C in parts of the UK as cold health alerts have been issued.

Sub-zero temperatures are likely overnight for many over the coming days, with a risk of icy patches developing and a chance of snow in the south – but it is not expected to be impactful, the Met Office said.