Public Health England has put a new cold weather alert in place until 9am Monday 18 January for much of the country.
Frost and ice, and a chance of snow on Saturday, is expected in the North East, North West, Yorkshire and the Humber, East Midlands, the East of England, West Midlands and the South East of England.
Dr Owen Landeg, a Principal Environmental Public Health Scientist at PHE, said:
As harsh wintry conditions persist across much of the country, it’s really important to keep checking on frail or older neighbours and relatives, especially those who live alone or with a serious illness.
Make a call, or socially-distanced doorstep visit if they live close by, to remind them of important health advice such as keeping their homes heated to at least 18°C, 64.4 Fahrenheit, and to wear shoes with a good grip if they need to go outside.
Food is also a vital source of energy so reminding them to have plenty of hot food and drinks will also help to keep them safe and well through the cold weather.
Steve Ramsdale, Chief Meteorologist at the Met Office, said:
The weather is staying unsettled over the weekend, with a snow and ice warning in place across many eastern parts of the country for Saturday. There will be spells of heavy rain at times which will likely fall as snow or sleet.
After temperatures recover by Sunday, it will remain unsettled through the early part of next week. However, colder conditions are forecast to return from midweek.
Check the Met Office weather forecast to stay aware of the weather in your region.
This year PHE has supplemented the Cold Weather Plan for England with useful resources and advice on the concurrent risks of cold weather and COVID-19 and how to keep warm and keep well this winter.