The first frost of the season is expected for some places this week as colder, Arctic air moves across the UK bringing a dip in temperatures. But how cold will it get and how long will the chillier spell last? Sarah Keith-Lucas takes a look.
Source: [BBC News](https://www.bbc.co.uk/weather/articles/ckwy4xn3v5eqo?at_medium=RSS&at_campaign=rss)